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157229480 = 2353930737
BaseRepresentation
bin10010101111100…
…10000110101000
3101221212002022002
421113302012220
5310222320410
623333550132
73616266662
oct1127620650
9357762262
10157229480
118082a921
12447a5348
13267606c5
1416c4b532
15dc0b7a5
hex95f21a8

157229480 has 16 divisors (see below), whose sum is σ = 353766420. Its totient is φ = 62891776.

The previous prime is 157229477. The next prime is 157229497. The reversal of 157229480 is 84922751.

It can be written as a sum of positive squares in 2 ways, for example, as 151930276 + 5299204 = 12326^2 + 2302^2 .

It is a super-2 number, since 2×1572294802 = 49442218762140800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1965329 + ... + 1965408.

Almost surely, 2157229480 is an apocalyptic number.

157229480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157229480 is an abundant number, since it is smaller than the sum of its proper divisors (196536940).

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

157229480 is a wasteful number, since it uses less digits than its factorization.

157229480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930748 (or 3930744 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 157229480 is about 12539.1179913102. The cubic root of 157229480 is about 539.7317826653.

The spelling of 157229480 in words is "one hundred fifty-seven million, two hundred twenty-nine thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 3930737 7861474 15722948 19653685 31445896 39307370 78614740 157229480