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157390432 = 254918451
BaseRepresentation
bin10010110000110…
…01011001100000
3101222011021002021
421120121121200
5310242443212
623341231224
73620540143
oct1130313140
9358137067
10157390432
118092a841
1244862514
13267b8a44
1416c9005a
15dc3e307
hex9619660

157390432 has 12 divisors (see below), whose sum is σ = 309862476. Its totient is φ = 78695200.

The previous prime is 157390427. The next prime is 157390439. The reversal of 157390432 is 234093751.

157390432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157390439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2459194 + ... + 2459257.

It is an arithmetic number, because the mean of its divisors is an integer number (25821873).

Almost surely, 2157390432 is an apocalyptic number.

It is an amenable number.

157390432 is a deficient number, since it is larger than the sum of its proper divisors (152472044).

157390432 is an equidigital number, since it uses as much as digits as its factorization.

157390432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4918461 (or 4918453 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 157390432 is about 12545.5343449372. The cubic root of 157390432 is about 539.9158899633.

The spelling of 157390432 in words is "one hundred fifty-seven million, three hundred ninety thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 32 4918451 9836902 19673804 39347608 78695216 157390432