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61393029 = 3291734079
BaseRepresentation
bin1110101000110…
…0100010000101
311021112002101220
43222030202011
5111204034104
610031510553
71343555265
oct352144205
9137462356
1061393029
1131722545
1218688459
13c947049
1482217a5
1555ca7d9
hex3a8c885

61393029 has 16 divisors (see below), whose sum is σ = 85190400. Its totient is φ = 39279296.

The previous prime is 61393021. The next prime is 61393043. The reversal of 61393029 is 92039316.

It is a cyclic number.

It is not a de Polignac number, because 61393029 - 23 = 61393021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61393021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13012 + ... + 17090.

It is an arithmetic number, because the mean of its divisors is an integer number (5324400).

Almost surely, 261393029 is an apocalyptic number.

It is an amenable number.

61393029 is a deficient number, since it is larger than the sum of its proper divisors (23797371).

61393029 is a wasteful number, since it uses less digits than its factorization.

61393029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 61393029 is about 7835.3703805245. The cubic root of 61393029 is about 394.4933503130.

The spelling of 61393029 in words is "sixty-one million, three hundred ninety-three thousand, twenty-nine".

Divisors: 1 3 29 87 173 519 4079 5017 12237 15051 118291 354873 705667 2117001 20464343 61393029