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61672793 = 7134315761
BaseRepresentation
bin1110101101000…
…0110101011001
311022001022011112
43223100311121
5111242012133
610041510105
71346132030
oct353206531
9138038145
1061672793
11318a3756
12187a2335
13ca144a0
148295717
155633648
hex3ad0d59

61672793 has 16 divisors (see below), whose sum is σ = 77675136. Its totient is φ = 47658240.

The previous prime is 61672783. The next prime is 61672811. The reversal of 61672793 is 39727616.

It is not a de Polignac number, because 61672793 - 210 = 61671769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61672793.

It is not an unprimeable number, because it can be changed into a prime (61672703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3968 + ... + 11793.

It is an arithmetic number, because the mean of its divisors is an integer number (4854696).

Almost surely, 261672793 is an apocalyptic number.

It is an amenable number.

61672793 is a deficient number, since it is larger than the sum of its proper divisors (16002343).

61672793 is a wasteful number, since it uses less digits than its factorization.

61672793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15824.

The product of its digits is 95256, while the sum is 41.

The square root of 61672793 is about 7853.2027224566. The cubic root of 61672793 is about 395.0916691586.

The spelling of 61672793 in words is "sixty-one million, six hundred seventy-two thousand, seven hundred ninety-three".

Divisors: 1 7 13 43 91 301 559 3913 15761 110327 204893 677723 1434251 4744061 8810399 61672793