Search a number
-
+
70930518912 = 2733116173419
BaseRepresentation
bin100001000001111001…
…0011101001110000000
320210002021021200212000
41002003302131032000
52130231203101122
652330211104000
75060503314531
oct1020362351600
9223067250760
1070930518912
1128099479770
12118b65a2000
1368c5168266
14360c438688
151ca216a0ac
hex1083c9d380

70930518912 has 512 divisors, whose sum is σ = 235859904000. Its totient is φ = 20802355200.

The previous prime is 70930518889. The next prime is 70930518977. The reversal of 70930518912 is 21981503907.

It is a super-2 number, since 2×709305189122 (a number of 23 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 63 ways as a sum of consecutive naturals, for example, 169285039 + ... + 169285457.

It is an arithmetic number, because the mean of its divisors is an integer number (460663875).

Almost surely, 270930518912 is an apocalyptic number.

70930518912 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70930518912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117929952000).

70930518912 is an abundant number, since it is smaller than the sum of its proper divisors (164929385088).

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

70930518912 is a wasteful number, since it uses less digits than its factorization.

70930518912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 70930518912 in words is "seventy billion, nine hundred thirty million, five hundred eighteen thousand, nine hundred twelve".