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79140372 = 223172271709
BaseRepresentation
bin1001011011110…
…01011000010100
312111220202011220
410231321120110
5130224442442
611504130340
71650452643
oct455713024
9174822156
1079140372
1140744373
12226069b0
131351c02c
14a72135a
156e33eec
hex4b79614

79140372 has 48 divisors (see below), whose sum is σ = 196499520. Its totient is φ = 24704512.

The previous prime is 79140371. The next prime is 79140409. The reversal of 79140372 is 27304197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79140371) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 45454 + ... + 47162.

It is an arithmetic number, because the mean of its divisors is an integer number (4093740).

Almost surely, 279140372 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 79140372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98249760).

79140372 is an abundant number, since it is smaller than the sum of its proper divisors (117359148).

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

79140372 is a wasteful number, since it uses less digits than its factorization.

79140372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 79140372 is about 8896.0874546061. The cubic root of 79140372 is about 429.3380331927.

The spelling of 79140372 in words is "seventy-nine million, one hundred forty thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 227 454 681 908 1362 1709 2724 3418 3859 5127 6836 7718 10254 11577 15436 20508 23154 29053 46308 58106 87159 116212 174318 348636 387943 775886 1163829 1551772 2327658 4655316 6595031 13190062 19785093 26380124 39570186 79140372