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61976893 = 1115137313
BaseRepresentation
bin1110110001101…
…1000100111101
311022121202022111
43230123010331
5111331230033
610052214021
71351536436
oct354330475
9138552274
1061976893
1131a91180
121890a311
13cabca24
14833448d
1556937cd
hex3b1b13d

61976893 has 8 divisors (see below), whose sum is σ = 68060736. Its totient is φ = 55968000.

The previous prime is 61976891. The next prime is 61976897. The reversal of 61976893 is 39867916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61976893 - 21 = 61976891 is a prime.

It is a super-2 number, since 2×619768932 = 7682270531866898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61976891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16996 + ... + 20317.

It is an arithmetic number, because the mean of its divisors is an integer number (8507592).

Almost surely, 261976893 is an apocalyptic number.

It is an amenable number.

61976893 is a deficient number, since it is larger than the sum of its proper divisors (6083843).

61976893 is a wasteful number, since it uses less digits than its factorization.

61976893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37475.

The product of its digits is 489888, while the sum is 49.

The square root of 61976893 is about 7872.5404413061. The cubic root of 61976893 is about 395.7399855028.

The spelling of 61976893 in words is "sixty-one million, nine hundred seventy-six thousand, eight hundred ninety-three".

Divisors: 1 11 151 1661 37313 410443 5634263 61976893