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45050240 = 275431637
BaseRepresentation
bin1010101111011…
…0100110000000
310010202210022102
42223312212000
543013101430
64245325532
71054630544
oct253664600
9103683272
1045050240
112347aa04
12131068a8
139444461
145da9a24
153e4d345
hex2af6980

45050240 has 64 divisors (see below), whose sum is σ = 110270160. Its totient is φ = 17590272.

The previous prime is 45050231. The next prime is 45050249. The reversal of 45050240 is 4205054.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45050231) and next prime (45050249).

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45050249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26702 + ... + 28338.

Almost surely, 245050240 is an apocalyptic number.

45050240 is a gapful number since it is divisible by the number (40) 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 45050240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55135080).

45050240 is an abundant number, since it is smaller than the sum of its proper divisors (65219920).

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

45050240 is a wasteful number, since it uses less digits than its factorization.

45050240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 45050240 is about 6711.9475564101. The cubic root of 45050240 is about 355.8216503443.

Adding to 45050240 its reverse (4205054), we get a palindrome (49255294).

The spelling of 45050240 in words is "forty-five million, fifty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 43 64 80 86 128 160 172 215 320 344 430 640 688 860 1376 1637 1720 2752 3274 3440 5504 6548 6880 8185 13096 13760 16370 26192 27520 32740 52384 65480 70391 104768 130960 140782 209536 261920 281564 351955 523840 563128 703910 1047680 1126256 1407820 2252512 2815640 4505024 5631280 9010048 11262560 22525120 45050240