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61796975372 = 221119671103281
BaseRepresentation
bin111001100011011000…
…110000001100001100
312220111201220121112122
4321203120300030030
52003030011202442
644220015352112
74315246423646
oct714330601414
9186451817478
1061796975372
1124231866280
12bb87822638
135a9ab2b622
142dc33bd896
15191a3aedd2
hexe6363030c

61796975372 has 48 divisors (see below), whose sum is σ = 126038935680. Its totient is φ = 26213932800.

The previous prime is 61796975369. The next prime is 61796975393. The reversal of 61796975372 is 27357969716.

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, 495629 + ... + 607652.

It is an arithmetic number, because the mean of its divisors is an integer number (2625811160).

Almost surely, 261796975372 is an apocalyptic number.

It is an amenable number.

61796975372 is an abundant number, since it is smaller than the sum of its proper divisors (64241960308).

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

61796975372 is a wasteful number, since it uses less digits than its factorization.

61796975372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103382 (or 1103380 counting only the distinct ones).

The product of its digits is 30005640, while the sum is 62.

The spelling of 61796975372 in words is "sixty-one billion, seven hundred ninety-six million, nine hundred seventy-five thousand, three hundred seventy-two".

Divisors: 1 2 4 11 19 22 38 44 67 76 134 209 268 418 737 836 1273 1474 2546 2948 5092 14003 28006 56012 1103281 2206562 4413124 12136091 20962339 24272182 41924678 48544364 73919827 83849356 147839654 230585729 295679308 461171458 813118097 922342916 1404476713 1626236194 2808953426 3252472388 5617906852 15449243843 30898487686 61796975372