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51154116 = 223132353269
BaseRepresentation
bin1100001100100…
…0110011000100
310120020220020220
43003020303010
5101043412431
65024224340
71160542236
oct303106304
9116226226
1051154116
1126969932
121516b0b0
13a7a0810
146b18256
154756b96
hex30c8cc4

51154116 has 96 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 14716416.

The previous prime is 51154111. The next prime is 51154157. The reversal of 51154116 is 61145115.

It is not an unprimeable number, because it can be changed into a prime (51154111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190030 + ... + 190298.

It is an arithmetic number, because the mean of its divisors is an integer number (1428840).

Almost surely, 251154116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51154116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68584320).

51154116 is an abundant number, since it is smaller than the sum of its proper divisors (86014524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51154116 is a wasteful number, since it uses less digits than its factorization.

51154116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 363 counting only the distinct ones).

The product of its digits is 600, while the sum is 24.

The square root of 51154116 is about 7152.2105673701. The cubic root of 51154116 is about 371.2161492336.

Subtracting 51154116 from its reverse (61145115), we obtain a palindrome (9990999).

The spelling of 51154116 in words is "fifty-one million, one hundred fifty-four thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 12 13 23 26 39 46 52 53 69 78 92 106 138 156 159 212 269 276 299 318 538 598 636 689 807 897 1076 1196 1219 1378 1614 1794 2067 2438 2756 3228 3497 3588 3657 4134 4876 6187 6994 7314 8268 10491 12374 13988 14257 14628 15847 18561 20982 24748 28514 31694 37122 41964 42771 47541 57028 63388 74244 80431 85542 95082 160862 171084 185341 190164 241293 321724 327911 370682 482586 556023 655822 741364 965172 983733 1112046 1311644 1967466 2224092 3934932 4262843 8525686 12788529 17051372 25577058 51154116