Search a number
-
+
157032205 = 5113122971
BaseRepresentation
bin10010101110000…
…01111100001101
3101221111001200121
421113001330031
5310200012310
623325424541
73614515561
oct1127017415
9357431617
10157032205
1180705690
124470b151
13266c1985
1416bd96a1
15dbbd0da
hex95c1f0d

157032205 has 24 divisors (see below), whose sum is σ = 212486112. Its totient is φ = 110484000.

The previous prime is 157032203. The next prime is 157032229. The reversal of 157032205 is 502230751.

157032205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157032205 - 21 = 157032203 is a prime.

It is a super-2 number, since 2×1570322052 = 49318226814324050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157032205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157032203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51370 + ... + 54340.

It is an arithmetic number, because the mean of its divisors is an integer number (8853588).

Almost surely, 2157032205 is an apocalyptic number.

It is an amenable number.

157032205 is a deficient number, since it is larger than the sum of its proper divisors (55453907).

157032205 is a wasteful number, since it uses less digits than its factorization.

157032205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049 (or 3018 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 157032205 is about 12531.2491396508. The cubic root of 157032205 is about 539.5059553164.

Adding to 157032205 its reverse (502230751), we get a palindrome (659262956).

The spelling of 157032205 in words is "one hundred fifty-seven million, thirty-two thousand, two hundred five".

Divisors: 1 5 11 31 55 155 341 961 1705 2971 4805 10571 14855 32681 52855 92101 163405 460505 1013111 2855131 5065555 14275655 31406441 157032205