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61934120 = 2354393527
BaseRepresentation
bin1110110001000…
…0101000101000
311022112120122022
43230100220220
5111323342440
610051244012
71351300643
oct354205050
9138476568
1061934120
1131a62026
12188a9608
13caa6411
148322a5a
155685cb5
hex3b10a28

61934120 has 32 divisors (see below), whose sum is σ = 139708800. Its totient is φ = 24710208.

The previous prime is 61934113. The next prime is 61934123. The reversal of 61934120 is 2143916.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 61934120.

It is not an unprimeable number, because it can be changed into a prime (61934123) 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, 15797 + ... + 19323.

It is an arithmetic number, because the mean of its divisors is an integer number (4365900).

Almost surely, 261934120 is an apocalyptic number.

It is an amenable number.

61934120 is an abundant number, since it is smaller than the sum of its proper divisors (77774680).

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

61934120 is a wasteful number, since it uses less digits than its factorization.

61934120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977 (or 3973 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 61934120 is about 7869.8233779418. The cubic root of 61934120 is about 395.6489253184.

The spelling of 61934120 in words is "sixty-one million, nine hundred thirty-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 439 878 1756 2195 3512 3527 4390 7054 8780 14108 17560 17635 28216 35270 70540 141080 1548353 3096706 6193412 7741765 12386824 15483530 30967060 61934120