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155254541 = 13311912017
BaseRepresentation
bin10010100000011…
…11111100001101
3101211010202012012
421100033330031
5304221121131
623223351005
73563433101
oct1120177415
9354122165
10155254541
117a701042
1243bb2465
132621b7c0
1416895901
15d96b52b
hex940ff0d

155254541 has 16 divisors (see below), whose sum is σ = 173580288. Its totient is φ = 137894400.

The previous prime is 155254507. The next prime is 155254559. The reversal of 155254541 is 145452551.

155254541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-155254541 is a prime.

It is a super-2 number, since 2×1552545412 = 48207945002241362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155254498 and 155254507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155254501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75965 + ... + 77981.

It is an arithmetic number, because the mean of its divisors is an integer number (10848768).

Almost surely, 2155254541 is an apocalyptic number.

It is an amenable number.

155254541 is a deficient number, since it is larger than the sum of its proper divisors (18325747).

155254541 is a wasteful number, since it uses less digits than its factorization.

155254541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252.

The product of its digits is 20000, while the sum is 32.

The square root of 155254541 is about 12460.1180170976. The cubic root of 155254541 is about 537.4624207367.

The spelling of 155254541 in words is "one hundred fifty-five million, two hundred fifty-four thousand, five hundred forty-one".

Divisors: 1 13 31 191 403 2017 2483 5921 26221 62527 76973 385247 812851 5008211 11942657 155254541