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157075634 = 2109171987
BaseRepresentation
bin10010101110011…
…00100010110010
3101221120021021002
421113030202302
5310202410014
623330402002
73615056312
oct1127144262
9357507232
10157075634
1180735281
1244730302
1326708681
1416c0b442
15dbcadde
hex95cc8b2

157075634 has 8 divisors (see below), whose sum is σ = 235832688. Its totient is φ = 78464740.

The previous prime is 157075613. The next prime is 157075637. The reversal of 157075634 is 436570751.

157075634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157075637) by changing a digit.

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, 33812 + ... + 38175.

It is an arithmetic number, because the mean of its divisors is an integer number (29479086).

Almost surely, 2157075634 is an apocalyptic number.

157075634 is a deficient number, since it is larger than the sum of its proper divisors (78757054).

157075634 is a wasteful number, since it uses less digits than its factorization.

157075634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73080.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 157075634 is about 12532.9818479083. The cubic root of 157075634 is about 539.5556861863. Note that the first 3 decimals are identical.

The spelling of 157075634 in words is "one hundred fifty-seven million, seventy-five thousand, six hundred thirty-four".

Divisors: 1 2 1091 2182 71987 143974 78537817 157075634