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157889253 = 3291814819
BaseRepresentation
bin10010110100100…
…11001011100101
3102000002121100010
421122103023211
5310404424003
623400040433
73625015344
oct1132231345
9360077303
10157889253
1181140595
1244a63119
1326931ac2
1416d7db5b
15dcdc003
hex96932e5

157889253 has 8 divisors (see below), whose sum is σ = 217778400. Its totient is φ = 101629808.

The previous prime is 157889243. The next prime is 157889257. The reversal of 157889253 is 352988751.

157889253 is digitally balanced in base 2, 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 cyclic number.

It is not a de Polignac number, because 157889253 - 26 = 157889189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157889257) 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, 907323 + ... + 907496.

It is an arithmetic number, because the mean of its divisors is an integer number (27222300).

Almost surely, 2157889253 is an apocalyptic number.

It is an amenable number.

157889253 is a deficient number, since it is larger than the sum of its proper divisors (59889147).

157889253 is a wasteful number, since it uses less digits than its factorization.

157889253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814851.

The product of its digits is 604800, while the sum is 48.

The square root of 157889253 is about 12565.3990386299. The cubic root of 157889253 is about 540.4856775897.

The spelling of 157889253 in words is "one hundred fifty-seven million, eight hundred eighty-nine thousand, two hundred fifty-three".

Divisors: 1 3 29 87 1814819 5444457 52629751 157889253