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61690024 = 2311701023
BaseRepresentation
bin1110101101010…
…1000010101000
311022002011210201
43223111002220
5111243040044
610042121544
71346233204
oct353250250
9138064721
1061690024
11319056a0
12187b02b4
13ca1c296
14829bb04
1556387d4
hex3ad50a8

61690024 has 16 divisors (see below), whose sum is σ = 126184320. Its totient is φ = 28040880.

The previous prime is 61690019. The next prime is 61690043. The reversal of 61690024 is 42009616.

It is a super-2 number, since 2×616900242 = 7611318122241152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61689974 and 61690001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350424 + ... + 350599.

It is an arithmetic number, because the mean of its divisors is an integer number (7886520).

Almost surely, 261690024 is an apocalyptic number.

It is an amenable number.

61690024 is an abundant number, since it is smaller than the sum of its proper divisors (64494296).

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

61690024 is a wasteful number, since it uses less digits than its factorization.

61690024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701040 (or 701036 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 61690024 is about 7854.2997141693. The cubic root of 61690024 is about 395.1284611285.

The spelling of 61690024 in words is "sixty-one million, six hundred ninety thousand, twenty-four".

Divisors: 1 2 4 8 11 22 44 88 701023 1402046 2804092 5608184 7711253 15422506 30845012 61690024