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70970337440 = 2554119754917
BaseRepresentation
bin100001000011000101…
…0010110100010100000
320210012001012200121022
41002012022112202200
52130321401244230
652334152345012
75061465625532
oct1020612264240
9223161180538
1070970337440
11281099a5a42
12119079a5168
13690049a312
143613841852
151ca58d31e5
hex10862968a0

70970337440 has 96 divisors (see below), whose sum is σ = 172631877264. Its totient is φ = 27554652160.

The previous prime is 70970337437. The next prime is 70970337443. The reversal of 70970337440 is 4473307907.

It is an interprime number because it is at equal distance from previous prime (70970337437) and next prime (70970337443).

It can be written as a sum of positive squares in 8 ways, for example, as 27860951056 + 43109386384 = 166916^2 + 207628^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70970337391 and 70970337400.

It is not an unprimeable number, because it can be changed into a prime (70970337443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1264862 + ... + 1319778.

Almost surely, 270970337440 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 70970337440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86315938632).

70970337440 is an abundant number, since it is smaller than the sum of its proper divisors (101661539824).

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

70970337440 is a wasteful number, since it uses less digits than its factorization.

70970337440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55170 (or 55162 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 44.

The spelling of 70970337440 in words is "seventy billion, nine hundred seventy million, three hundred thirty-seven thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 41 80 82 160 164 197 205 328 394 410 656 788 820 985 1312 1576 1640 1970 3152 3280 3940 6304 6560 7880 8077 15760 16154 31520 32308 40385 54917 64616 80770 109834 129232 161540 219668 258464 274585 323080 439336 549170 646160 878672 1098340 1292320 1757344 2196680 2251597 4393360 4503194 8786720 9006388 10818649 11257985 18012776 21637298 22515970 36025552 43274596 45031940 54093245 72051104 86549192 90063880 108186490 173098384 180127760 216372980 346196768 360255520 432745960 443564609 865491920 887129218 1730983840 1774258436 2217823045 3548516872 4435646090 7097033744 8871292180 14194067488 17742584360 35485168720 70970337440