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19472151412 = 22711333118593
BaseRepresentation
bin10010001000101000…
…010111001101110100
31212021001021210010001
4102020220113031310
5304334332321122
612540111441044
71256352361510
oct221050271564
955231253101
1019472151412
11829258161a
123935226184
131ab4221bac
14d2a161140
1578e751527
hex488a17374

19472151412 has 48 divisors (see below), whose sum is σ = 39409759872. Its totient is φ = 8245923840.

The previous prime is 19472151409. The next prime is 19472151421. The reversal of 19472151412 is 21415127491.

It is a super-2 number, since 2×194721514122 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 1037988 + ... + 1056580.

It is an arithmetic number, because the mean of its divisors is an integer number (821036664).

Almost surely, 219472151412 is an apocalyptic number.

It is an amenable number.

19472151412 is an abundant number, since it is smaller than the sum of its proper divisors (19937608460).

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

19472151412 is a wasteful number, since it uses less digits than its factorization.

19472151412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19048 (or 19046 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The spelling of 19472151412 in words is "nineteen billion, four hundred seventy-two million, one hundred fifty-one thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 113 226 331 452 662 791 1324 1582 2317 3164 4634 9268 18593 37186 37403 74372 74806 130151 149612 260302 261821 520604 523642 1047284 2101009 4202018 6154283 8404036 12308566 14707063 24617132 29414126 43079981 58828252 86159962 172319924 695433979 1390867958 2781735916 4868037853 9736075706 19472151412