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979199042120 = 235131883075081
BaseRepresentation
bin11100011111111001100…
…11111010001001001000
310110121111001202021120122
432033330303322021020
5112020344423321440
62025500545442412
7130513315345655
oct16177463721110
93417431667518
10979199042120
11348304371412
12139937940408
1371451994040
1435571a26c2c
151a7105347b5
hexe3fccfa248

979199042120 has 32 divisors (see below), whose sum is σ = 2372674603320. Its totient is φ = 361550415360.

The previous prime is 979199042113. The next prime is 979199042161. The reversal of 979199042120 is 21240991979.

It can be written as a sum of positive squares in 4 ways, for example, as 447900916516 + 531298125604 = 669254^2 + 728902^2 .

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, 941537021 + ... + 941538060.

Almost surely, 2979199042120 is an apocalyptic number.

It is an amenable number.

979199042120 is an abundant number, since it is smaller than the sum of its proper divisors (1393475561200).

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

979199042120 is a wasteful number, since it uses less digits than its factorization.

979199042120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883075105 (or 1883075101 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 53.

The spelling of 979199042120 in words is "nine hundred seventy-nine billion, one hundred ninety-nine million, forty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 1883075081 3766150162 7532300324 9415375405 15064600648 18830750810 24479976053 37661501620 48959952106 75323003240 97919904212 122399880265 195839808424 244799760530 489599521060 979199042120