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120497790 = 23571493851
BaseRepresentation
bin1110010111010…
…10011001111110
322101201220220010
413023222121332
5221321412130
615542404050
72662133340
oct713523176
9271656803
10120497790
1162021856
1234430626
131bc6c68a
1412009290
15a8a30b0
hex72ea67e

120497790 has 64 divisors (see below), whose sum is σ = 332812800. Its totient is φ = 27350400.

The previous prime is 120497777. The next prime is 120497809. The reversal of 120497790 is 97794021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29365 + ... + 33215.

It is an arithmetic number, because the mean of its divisors is an integer number (5200200).

Almost surely, 2120497790 is an apocalyptic number.

120497790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120497790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166406400).

120497790 is an abundant number, since it is smaller than the sum of its proper divisors (212315010).

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

120497790 is a wasteful number, since it uses less digits than its factorization.

120497790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 120497790 is about 10977.1485368469. The cubic root of 120497790 is about 493.9235049044.

The spelling of 120497790 in words is "one hundred twenty million, four hundred ninety-seven thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 149 210 298 447 745 894 1043 1490 2086 2235 3129 3851 4470 5215 6258 7702 10430 11553 15645 19255 23106 26957 31290 38510 53914 57765 80871 115530 134785 161742 269570 404355 573799 808710 1147598 1721397 2868995 3442794 4016593 5737990 8033186 8606985 12049779 17213970 20082965 24099558 40165930 60248895 120497790