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61131079010 = 2515741339421
BaseRepresentation
bin111000111011101100…
…100011110101100010
312211210022220120110102
4320323230203311202
52000144024012020
644025551102402
74262612412101
oct707354436542
9184708816412
1061131079010
1123a1a99a501
12ba20811a02
1359c2ba0001
142d5cba2038
1518cbbc7475
hexe3bb23d62

61131079010 has 32 divisors (see below), whose sum is σ = 110775358512. Its totient is φ = 24288226560.

The previous prime is 61131079001. The next prime is 61131079049. The reversal of 61131079010 is 1097013116.

It is a Cunningham number, because it is equal to 2472472+1.

It can be written as a sum of positive squares in 8 ways, for example, as 22007425801 + 39123653209 = 148349^2 + 197797^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6484100 + ... + 6493520.

Almost surely, 261131079010 is an apocalyptic number.

61131079010 is a deficient number, since it is larger than the sum of its proper divisors (49644279502).

61131079010 is a wasteful number, since it uses less digits than its factorization.

61131079010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13718.

The product of its (nonzero) digits is 1134, while the sum is 29.

The spelling of 61131079010 in words is "sixty-one billion, one hundred thirty-one million, seventy-nine thousand, ten".

Divisors: 1 2 5 10 157 314 785 1570 4133 8266 9421 18842 20665 41330 47105 94210 648881 1297762 1479097 2958194 3244405 6488810 7395485 14790970 38936993 77873986 194684965 389369930 6113107901 12226215802 30565539505 61131079010