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31004021171180 = 22537235571778551
BaseRepresentation
bin1110000110010101011111…
…01010110010001111101100
311001202221210112122211211002
413003022233222302033230
513030432213404434210
6145535014541215432
76346652355466331
oct703125752621754
9131687715584732
1031004021171180
119973805750412
123588953b61578
13143b88882ca05
14792861898988
1538b7445984a5
hex1c32afab23ec

31004021171180 has 48 divisors (see below), whose sum is σ = 66871008313536. Its totient is φ = 12065910854400.

The previous prime is 31004021171153. The next prime is 31004021171257. The reversal of 31004021171180 is 8117112040013.

It is a super-2 number, since 2×310040211711802 (a number of 28 digits) contains 22 as substring.

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, 16542905 + ... + 18321455.

It is an arithmetic number, because the mean of its divisors is an integer number (1393146006532).

Almost surely, 231004021171180 is an apocalyptic number.

It is an amenable number.

31004021171180 is an abundant number, since it is smaller than the sum of its proper divisors (35866987142356).

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

31004021171180 is a wasteful number, since it uses less digits than its factorization.

31004021171180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802154 (or 1802152 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 29.

The spelling of 31004021171180 in words is "thirty-one trillion, four billion, twenty-one million, one hundred seventy-one thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 23557 47114 94228 117785 235570 471140 871609 1743218 1778551 3486436 3557102 4358045 7114204 8716090 8892755 17432180 17785510 35571020 65806387 131612774 263225548 329031935 658063870 1316127740 41897325907 83794651814 167589303628 209486629535 418973259070 837946518140 1550201058559 3100402117118 6200804234236 7751005292795 15502010585590 31004021171180