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61675213 = 233186501
BaseRepresentation
bin1110101101000…
…1011011001101
311022001102111011
43223101123031
5111242101323
610041525221
71346142055
oct353213315
9138042434
1061675213
11318a5556
12187a3811
13ca15612
148296565
15563420d
hex3ad16cd

61675213 has 8 divisors (see below), whose sum is σ = 66433536. Its totient is φ = 57090000.

The previous prime is 61675183. The next prime is 61675217. The reversal of 61675213 is 31257616.

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

It is a cyclic number.

It is not a de Polignac number, because 61675213 - 25 = 61675181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61675217) 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, 42538 + ... + 43963.

It is an arithmetic number, because the mean of its divisors is an integer number (8304192).

Almost surely, 261675213 is an apocalyptic number.

It is an amenable number.

61675213 is a deficient number, since it is larger than the sum of its proper divisors (4758323).

61675213 is a wasteful number, since it uses less digits than its factorization.

61675213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86555.

The product of its digits is 7560, while the sum is 31.

The square root of 61675213 is about 7853.3567982106. The cubic root of 61675213 is about 395.0968368037.

The spelling of 61675213 in words is "sixty-one million, six hundred seventy-five thousand, two hundred thirteen".

Divisors: 1 23 31 713 86501 1989523 2681531 61675213