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61348038938 = 2316191598521
BaseRepresentation
bin111001001000101000…
…001100100100011010
312212100110011021112022
4321020220030210122
52001120044221223
644103301214442
74301155504244
oct711050144432
9185313137468
1061348038938
112402140672a
12ba81401422
135a28b14a74
142d7d91b094
1518e0c81ac8
hexe48a0c91a

61348038938 has 16 divisors (see below), whose sum is σ = 95144029440. Its totient is φ = 29636560800.

The previous prime is 61348038919. The next prime is 61348038979. The reversal of 61348038938 is 83983084316.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61348038938.

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, 760883 + ... + 837638.

It is an arithmetic number, because the mean of its divisors is an integer number (5946501840).

Almost surely, 261348038938 is an apocalyptic number.

61348038938 is a deficient number, since it is larger than the sum of its proper divisors (33795990502).

61348038938 is a wasteful number, since it uses less digits than its factorization.

61348038938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599173.

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 61348038938 in words is "sixty-one billion, three hundred forty-eight million, thirty-eight thousand, nine hundred thirty-eight".

Divisors: 1 2 31 62 619 1238 19189 38378 1598521 3197042 49554151 99108302 989484499 1978968998 30674019469 61348038938