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61123134 = 2331328619
BaseRepresentation
bin1110100100101…
…0101000111110
311021000101011210
43221022220332
5111121420014
610022025250
71341352362
oct351125076
9137011153
1061123134
1131558796
1218578226
13c881247
1481912a2
155575859
hex3a4aa3e

61123134 has 16 divisors (see below), whose sum is σ = 126190080. Its totient is φ = 19717080.

The previous prime is 61123099. The next prime is 61123141. The reversal of 61123134 is 43132116.

It is a self number, because there is not a number n which added to its sum of digits gives 61123134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164124 + ... + 164495.

It is an arithmetic number, because the mean of its divisors is an integer number (7886880).

Almost surely, 261123134 is an apocalyptic number.

61123134 is an abundant number, since it is smaller than the sum of its proper divisors (65066946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61123134 is a wasteful number, since it uses less digits than its factorization.

61123134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328655.

The product of its digits is 432, while the sum is 21.

The square root of 61123134 is about 7818.1285484443. The cubic root of 61123134 is about 393.9144127700.

The spelling of 61123134 in words is "sixty-one million, one hundred twenty-three thousand, one hundred thirty-four".

Divisors: 1 2 3 6 31 62 93 186 328619 657238 985857 1971714 10187189 20374378 30561567 61123134