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61383051 = 326820339
BaseRepresentation
bin1110101000101…
…0000110001011
311021111120201100
43222022012023
5111203224201
610031352443
71343514222
oct352120613
9137446640
1061383051
1131715aa4
1218682723
13c942642
14821bcb9
1555c7886
hex3a8a18b

61383051 has 6 divisors (see below), whose sum is σ = 88664420. Its totient is φ = 40922028.

The previous prime is 61383043. The next prime is 61383089. The reversal of 61383051 is 15038316.

It is not a de Polignac number, because 61383051 - 23 = 61383043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61383001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3410161 + ... + 3410178.

Almost surely, 261383051 is an apocalyptic number.

61383051 is a deficient number, since it is larger than the sum of its proper divisors (27281369).

61383051 is a wasteful number, since it uses less digits than its factorization.

61383051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820345 (or 6820342 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 61383051 is about 7834.7336266142. The cubic root of 61383051 is about 394.4719772680.

The spelling of 61383051 in words is "sixty-one million, three hundred eighty-three thousand, fifty-one".

Divisors: 1 3 9 6820339 20461017 61383051