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70250257220 = 2251113107229561
BaseRepresentation
bin100000101101100111…
…1011101101101000100
320201022212020211020112
41001123033131231010
52122333031212340
652134510452152
75034603222353
oct1013317355504
9221285224215
1070250257220
112787a491020
1211746804058
13681724a150
143585d5b99a
151c62596065
hex105b3ddb44

70250257220 has 96 divisors (see below), whose sum is σ = 174937262976. Its totient is φ = 23360025600.

The previous prime is 70250257219. The next prime is 70250257283. The reversal of 70250257220 is 2275205207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191240 + ... + 420800.

It is an arithmetic number, because the mean of its divisors is an integer number (1822263156).

Almost surely, 270250257220 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 70250257220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87468631488).

70250257220 is an abundant number, since it is smaller than the sum of its proper divisors (104687005756).

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

70250257220 is a wasteful number, since it uses less digits than its factorization.

70250257220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229701 (or 229699 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The spelling of 70250257220 in words is "seventy billion, two hundred fifty million, two hundred fifty-seven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 107 110 130 143 214 220 260 286 428 535 572 715 1070 1177 1391 1430 2140 2354 2782 2860 4708 5564 5885 6955 11770 13910 15301 23540 27820 30602 61204 76505 153010 229561 306020 459122 918244 1147805 2295610 2525171 2984293 4591220 5050342 5968586 10100684 11937172 12625855 14921465 24563027 25251710 29842930 32827223 49126054 50503420 59685860 65654446 98252108 122815135 131308892 164136115 245630270 270193297 319319351 328272230 491260540 540386594 638638702 656544460 1080773188 1277277404 1350966485 1596596755 2701932970 3193193510 3512512861 5403865940 6386387020 7025025722 14050051444 17562564305 35125128610 70250257220