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157023933 = 3114758301
BaseRepresentation
bin10010101101111…
…11111010111101
3101221110122100020
421112333322331
5310144231213
623325322353
73614452503
oct1126777275
9357418306
10157023933
11806aa450
12447063b9
13266bac91
1416bd6673
15dbba923
hex95bfebd

157023933 has 8 divisors (see below), whose sum is σ = 228398496. Its totient is φ = 95166000.

The previous prime is 157023929. The next prime is 157023941. The reversal of 157023933 is 339320751.

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

It is not a de Polignac number, because 157023933 - 22 = 157023929 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 4758301 = 157023933 / (1 + 5 + 7 + 0 + 2 + 3 + 9 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 157023894 and 157023903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157023913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2379118 + ... + 2379183.

It is an arithmetic number, because the mean of its divisors is an integer number (28549812).

Almost surely, 2157023933 is an apocalyptic number.

It is an amenable number.

157023933 is a deficient number, since it is larger than the sum of its proper divisors (71374563).

157023933 is a wasteful number, since it uses less digits than its factorization.

157023933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758315.

The product of its (nonzero) digits is 17010, while the sum is 33.

The square root of 157023933 is about 12530.9190804186. The cubic root of 157023933 is about 539.4964819483.

The spelling of 157023933 in words is "one hundred fifty-seven million, twenty-three thousand, nine hundred thirty-three".

Divisors: 1 3 11 33 4758301 14274903 52341311 157023933