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51416042 = 2315315647
BaseRepresentation
bin1100010000100…
…0101111101010
310120202012112212
43010020233222
5101130303132
65034005122
71163012666
oct304105752
9116665485
1051416042
11270286a7
12152767a2
13a862ac2
146b858a6
1547a95b2
hex3108bea

51416042 has 16 divisors (see below), whose sum is σ = 81119232. Its totient is φ = 24407760.

The previous prime is 51416023. The next prime is 51416069. The reversal of 51416042 is 24061415.

It is a junction number, because it is equal to n+sod(n) for n = 51415999 and 51416017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4538 + ... + 11109.

It is an arithmetic number, because the mean of its divisors is an integer number (5069952).

Almost surely, 251416042 is an apocalyptic number.

51416042 is a deficient number, since it is larger than the sum of its proper divisors (29703190).

51416042 is a wasteful number, since it uses less digits than its factorization.

51416042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15733.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 51416042 is about 7170.4980301232. The cubic root of 51416042 is about 371.8486540853.

Adding to 51416042 its reverse (24061415), we get a palindrome (75477457).

The spelling of 51416042 in words is "fifty-one million, four hundred sixteen thousand, forty-two".

Divisors: 1 2 31 53 62 106 1643 3286 15647 31294 485057 829291 970114 1658582 25708021 51416042