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670770685984 = 25731369126171
BaseRepresentation
bin10011100001011010000…
…11000110100000100000
32101010101011101101210011
421300231003012200200
541442214243422414
61232051531414304
766314215520410
oct11605503064040
92333334341704
10670770685984
11239521624433
12a9bbb8b4394
134b33a963069
1424673394640
15126ace64dc4
hex9c2d0c6820

670770685984 has 96 divisors (see below), whose sum is σ = 1558400643072. Its totient is φ = 278113824000.

The previous prime is 670770685979. The next prime is 670770685999. The reversal of 670770685984 is 489586077076.

It is a happy 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, 25617219 + ... + 25643389.

It is an arithmetic number, because the mean of its divisors is an integer number (16233340032).

Almost surely, 2670770685984 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 670770685984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779200321536).

670770685984 is an abundant number, since it is smaller than the sum of its proper divisors (887629957088).

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

670770685984 is a wasteful number, since it uses less digits than its factorization.

670770685984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29910 (or 29902 counting only the distinct ones).

The product of its (nonzero) digits is 142248960, while the sum is 67.

The spelling of 670770685984 in words is "six hundred seventy billion, seven hundred seventy million, six hundred eighty-five thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 31 32 56 62 112 124 217 224 248 434 496 868 992 1736 3472 3691 6944 7382 14764 25837 26171 29528 51674 52342 59056 103348 104684 114421 118112 183197 206696 209368 228842 366394 413392 418736 457684 732788 800947 811301 826784 837472 915368 1465576 1601894 1622602 1830736 2931152 3203788 3245204 3661472 5679107 5862304 6407576 6490408 11358214 12815152 12980816 22716428 25630304 25961632 45432856 90865712 96597161 181731424 193194322 386388644 676180127 772777288 1352360254 1545554576 2704720508 2994511991 3091109152 5409441016 5989023982 10818882032 11978047964 20961583937 21637764064 23956095928 41923167874 47912191856 83846335748 95824383712 167692671496 335385342992 670770685984