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153942480 = 243251712577
BaseRepresentation
bin10010010110011…
…11100111010000
3101201200002101100
421023033213100
5303402124410
623135304400
73546326616
oct1113174720
9351602340
10153942480
117999529a
124367b100
1325b7c533
14166336b6
15d7ac8c0
hex92cf9d0

153942480 has 120 divisors (see below), whose sum is σ = 547444872. Its totient is φ = 38633472.

The previous prime is 153942433. The next prime is 153942487. The reversal of 153942480 is 84249351.

153942480 is a `hidden beast` number, since 1 + 539 + 42 + 4 + 80 = 666.

153942480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 66781584 + 87160896 = 8172^2 + 9336^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153942487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5952 + ... + 18528.

Almost surely, 2153942480 is an apocalyptic number.

153942480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153942480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273722436).

153942480 is an abundant number, since it is smaller than the sum of its proper divisors (393502392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153942480 is a wasteful number, since it uses less digits than its factorization.

153942480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12613 (or 12604 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 153942480 is about 12407.3558827012. The cubic root of 153942480 is about 535.9440982763.

The spelling of 153942480 in words is "one hundred fifty-three million, nine hundred forty-two thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 34 36 40 45 48 51 60 68 72 80 85 90 102 120 136 144 153 170 180 204 240 255 272 306 340 360 408 510 612 680 720 765 816 1020 1224 1360 1530 2040 2448 3060 4080 6120 12240 12577 25154 37731 50308 62885 75462 100616 113193 125770 150924 188655 201232 213809 226386 251540 301848 377310 427618 452772 503080 565965 603696 641427 754620 855236 905544 1006160 1069045 1131930 1282854 1509240 1710472 1811088 1924281 2138090 2263860 2565708 3018480 3207135 3420944 3848562 4276180 4527720 5131416 6414270 7697124 8552360 9055440 9621405 10262832 12828540 15394248 17104720 19242810 25657080 30788496 38485620 51314160 76971240 153942480