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61350986 = 2139220687
BaseRepresentation
bin1110101000001…
…0010001001010
311021102221201202
43222002101022
5111201212421
610030544202
71343321564
oct352022112
9137387652
1061350986
11316a39a4
1218668062
13c930b78
148210334
1555bd10b
hex3a8244a

61350986 has 8 divisors (see below), whose sum is σ = 92688960. Its totient is φ = 30454668.

The previous prime is 61350983. The next prime is 61351001. The reversal of 61350986 is 68905316.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61350983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110066 + ... + 110621.

It is an arithmetic number, because the mean of its divisors is an integer number (11586120).

Almost surely, 261350986 is an apocalyptic number.

61350986 is a deficient number, since it is larger than the sum of its proper divisors (31337974).

61350986 is a wasteful number, since it uses less digits than its factorization.

61350986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220828.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 61350986 is about 7832.6870229826. The cubic root of 61350986 is about 394.4032778097.

The spelling of 61350986 in words is "sixty-one million, three hundred fifty thousand, nine hundred eighty-six".

Divisors: 1 2 139 278 220687 441374 30675493 61350986