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1972215034284 = 2231121358274817
BaseRepresentation
bin11100101100110001001…
…011010011000110101100
320222112122001112100101210
4130230301023103012230
5224303044022044114
64110004552434420
7262326220123065
oct34546113230654
96875561470353
101972215034284
116a0458a75900
1227a28a9a8a10
13113c96065a61
146b6546b756c
153647da90259
hex1cb312d31ac

1972215034284 has 36 divisors (see below), whose sum is σ = 5058215422232. Its totient is φ = 597640919040.

The previous prime is 1972215034261. The next prime is 1972215034351. The reversal of 1972215034284 is 4824305122791.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 679135957 + ... + 679138860.

Almost surely, 21972215034284 is an apocalyptic number.

It is an amenable number.

1972215034284 is an abundant number, since it is smaller than the sum of its proper divisors (3086000387948).

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

1972215034284 is a wasteful number, since it uses less digits than its factorization.

1972215034284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358274846 (or 1358274833 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 1972215034284 in words is "one trillion, nine hundred seventy-two billion, two hundred fifteen million, thirty-four thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 121 132 242 363 484 726 1452 1358274817 2716549634 4074824451 5433099268 8149648902 14941022987 16299297804 29882045974 44823068961 59764091948 89646137922 164351252857 179292275844 328702505714 493053758571 657405011428 986107517142 1972215034284