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157143066 = 2326190511
BaseRepresentation
bin10010101110111…
…01000000011010
3101221200200202120
421113131000122
5310212034231
623332042110
73615460023
oct1127350032
9357620676
10157143066
1180780a03
1244763336
1326730282
1416c27c4a
15dbe0d96
hex95dd01a

157143066 has 8 divisors (see below), whose sum is σ = 314286144. Its totient is φ = 52381020.

The previous prime is 157143023. The next prime is 157143067. The reversal of 157143066 is 660341751.

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

157143066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (157143067) 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, 13095250 + ... + 13095261.

It is an arithmetic number, because the mean of its divisors is an integer number (39285768).

Almost surely, 2157143066 is an apocalyptic number.

157143066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

157143066 is a wasteful number, since it uses less digits than its factorization.

157143066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26190516.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 157143066 is about 12535.6717410755. The cubic root of 157143066 is about 539.6328849067.

The spelling of 157143066 in words is "one hundred fifty-seven million, one hundred forty-three thousand, sixty-six".

Divisors: 1 2 3 6 26190511 52381022 78571533 157143066