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65046940 = 2257464621
BaseRepresentation
bin1111100000100…
…0100110011100
311112101201121221
43320020212130
5113123000230
610242103124
71416614140
oct370104634
9145351557
1065046940
1133798802
121994aaa4
131062621a
1488d3220
155a9d27a
hex3e0899c

65046940 has 24 divisors (see below), whose sum is σ = 156112992. Its totient is φ = 22301760.

The previous prime is 65046893. The next prime is 65046973. The reversal of 65046940 is 4964056.

It is a super-2 number, since 2×650469402 = 8462208806727200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65046896 and 65046905.

It is a congruent number.

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, 232171 + ... + 232450.

It is an arithmetic number, because the mean of its divisors is an integer number (6504708).

Almost surely, 265046940 is an apocalyptic number.

It is an amenable number.

65046940 is an abundant number, since it is smaller than the sum of its proper divisors (91066052).

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

65046940 is a wasteful number, since it uses less digits than its factorization.

65046940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464637 (or 464635 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 65046940 is about 8065.1683181444. The cubic root of 65046940 is about 402.1693386558.

The spelling of 65046940 in words is "sixty-five million, forty-six thousand, nine hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 464621 929242 1858484 2323105 3252347 4646210 6504694 9292420 13009388 16261735 32523470 65046940