Search a number
-
+
51405088 = 257229487
BaseRepresentation
bin1100010000011…
…0000100100000
310120201122112011
43010012010200
5101124430323
65033442304
71162636030
oct304060440
9116648464
1051405088
1127020449
1215270394
13a85ab17
146b818c0
1547a620d
hex3106120

51405088 has 24 divisors (see below), whose sum is σ = 115661952. Its totient is φ = 22030656.

The previous prime is 51405077. The next prime is 51405121. The reversal of 51405088 is 88050415.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114520 + ... + 114967.

It is an arithmetic number, because the mean of its divisors is an integer number (4819248).

Almost surely, 251405088 is an apocalyptic number.

It is an amenable number.

51405088 is an abundant number, since it is smaller than the sum of its proper divisors (64256864).

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

51405088 is a wasteful number, since it uses less digits than its factorization.

51405088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229504 (or 229496 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 51405088 is about 7169.7341652254. The cubic root of 51405088 is about 371.8222452105.

The spelling of 51405088 in words is "fifty-one million, four hundred five thousand, eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 229487 458974 917948 1606409 1835896 3212818 3671792 6425636 7343584 12851272 25702544 51405088