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155400412 = 2238850103
BaseRepresentation
bin10010100001100…
…11100011011100
3101211102011021211
421100303203130
5304240303122
623230434204
73564611266
oct1120634334
9354364254
10155400412
117a7a06a2
1244062964
132627000b
14168d2b36
15d999877
hex94338dc

155400412 has 6 divisors (see below), whose sum is σ = 271950728. Its totient is φ = 77700204.

The previous prime is 155400389. The next prime is 155400433. The reversal of 155400412 is 214004551.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19425048 + ... + 19425055.

Almost surely, 2155400412 is an apocalyptic number.

It is an amenable number.

155400412 is a deficient number, since it is larger than the sum of its proper divisors (116550316).

155400412 is a wasteful number, since it uses less digits than its factorization.

155400412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38850107 (or 38850105 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 155400412 is about 12465.9701587963. The cubic root of 155400412 is about 537.6306941608.

Adding to 155400412 its reverse (214004551), we get a palindrome (369404963).

The spelling of 155400412 in words is "one hundred fifty-five million, four hundred thousand, four hundred twelve".

Divisors: 1 2 4 38850103 77700206 155400412