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152806380 = 22352546773
BaseRepresentation
bin10010001101110…
…10001111101100
3101122112100221120
421012322033230
5303104301010
623055100540
73533555436
oct1106721754
9348470846
10152806380
1179289771
1243211750
132587239c
1416419656
15d635e70
hex91ba3ec

152806380 has 24 divisors (see below), whose sum is σ = 427858032. Its totient is φ = 40748352.

The previous prime is 152806369. The next prime is 152806427. The reversal of 152806380 is 83608251.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273327 + ... + 1273446.

It is an arithmetic number, because the mean of its divisors is an integer number (17827418).

Almost surely, 2152806380 is an apocalyptic number.

152806380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152806380 is an abundant number, since it is smaller than the sum of its proper divisors (275051652).

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

152806380 is a wasteful number, since it uses less digits than its factorization.

152806380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546785 (or 2546783 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 152806380 is about 12361.4877745359. The cubic root of 152806380 is about 534.6224138666.

The spelling of 152806380 in words is "one hundred fifty-two million, eight hundred six thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2546773 5093546 7640319 10187092 12733865 15280638 25467730 30561276 38201595 50935460 76403190 152806380