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52512189972 = 223113113197961
BaseRepresentation
bin110000111001111110…
…000110111000010100
312000112122221122101220
4300321332012320110
51330021110034342
640042422250340
73536205151524
oct607176067024
9160478848356
1052512189972
11202a7842610
12a2162869b0
134c4b379778
142782235684
1515751cc5ec
hexc39f86e14

52512189972 has 96 divisors (see below), whose sum is σ = 139033939968. Its totient is φ = 15281760000.

The previous prime is 52512189937. The next prime is 52512190007. The reversal of 52512189972 is 27998121525.

52512189972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52512189937) and next prime (52512190007).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 487072 + ... + 585032.

It is an arithmetic number, because the mean of its divisors is an integer number (1448270208).

Almost surely, 252512189972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52512189972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69516969984).

52512189972 is an abundant number, since it is smaller than the sum of its proper divisors (86521749996).

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

52512189972 is a wasteful number, since it uses less digits than its factorization.

52512189972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98141 (or 98139 counting only the distinct ones).

The product of its digits is 907200, while the sum is 51.

The spelling of 52512189972 in words is "fifty-two billion, five hundred twelve million, one hundred eighty-nine thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 11 12 22 31 33 44 62 66 93 124 131 132 186 262 341 372 393 524 682 786 1023 1364 1441 1572 2046 2882 4061 4092 4323 5764 8122 8646 12183 16244 17292 24366 44671 48732 89342 97961 134013 178684 195922 268026 293883 391844 536052 587766 1077571 1175532 2155142 3036791 3232713 4310284 6073582 6465426 9110373 12147164 12832891 12930852 18220746 25665782 33404701 36441492 38498673 51331564 66809402 76997346 100214103 133618804 141161801 153994692 200428206 282323602 397819621 400856412 423485403 564647204 795639242 846970806 1193458863 1591278484 1693941612 2386917726 4376015831 4773835452 8752031662 13128047493 17504063324 26256094986 52512189972