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51154030 = 253125323
BaseRepresentation
bin1100001100100…
…0110001101110
310120020220010201
43003020301232
5101043412110
65024224114
71160542054
oct303106156
9116226121
1051154030
1126969864
121516b03a
13a7a0775
146b181d4
154756b3a
hex30c8c6e

51154030 has 24 divisors (see below), whose sum is σ = 95161176. Its totient is φ = 19797840.

The previous prime is 51154021. The next prime is 51154043. The reversal of 51154030 is 3045115.

It is a junction number, because it is equal to n+sod(n) for n = 51153989 and 51154007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6949 + ... + 12271.

It is an arithmetic number, because the mean of its divisors is an integer number (3965049).

Almost surely, 251154030 is an apocalyptic number.

51154030 is a deficient number, since it is larger than the sum of its proper divisors (44007146).

51154030 is a wasteful number, since it uses less digits than its factorization.

51154030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392 (or 5361 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 51154030 is about 7152.2045552403. The cubic root of 51154030 is about 371.2159412047.

Adding to 51154030 its reverse (3045115), we get a palindrome (54199145).

The spelling of 51154030 in words is "fifty-one million, one hundred fifty-four thousand, thirty".

Divisors: 1 2 5 10 31 62 155 310 961 1922 4805 5323 9610 10646 26615 53230 165013 330026 825065 1650130 5115403 10230806 25577015 51154030