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69910140672 = 2832171993941
BaseRepresentation
bin100000100011011111…
…0000001011100000000
320200110011021010001100
41001012332001130000
52121133444000142
652041040534400
75023303251051
oct1010676013400
9220404233040
1069910140672
11277154a7469
1211670921400
136791944758
143552b04728
151c427b0b4c
hex1046f81700

69910140672 has 216 divisors, whose sum is σ = 224660414160. Its totient is φ = 20778024960.

The previous prime is 69910140661. The next prime is 69910140683. The reversal of 69910140672 is 27604101996.

It is an interprime number because it is at equal distance from previous prime (69910140661) and next prime (69910140683).

It is a super-3 number, since 3×699101406723 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 697222 + ... + 791162.

It is an arithmetic number, because the mean of its divisors is an integer number (1040094510).

Almost surely, 269910140672 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 69910140672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112330207080).

69910140672 is an abundant number, since it is smaller than the sum of its proper divisors (154750273488).

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

69910140672 is a wasteful number, since it uses less digits than its factorization.

69910140672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93999 (or 93982 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 69910140672 in words is "sixty-nine billion, nine hundred ten million, one hundred forty thousand, six hundred seventy-two".