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120766390 = 2531389569
BaseRepresentation
bin1110011001010…
…11111110110110
322102020120100021
413030223332312
5221404011030
615552235354
72664332413
oct714537666
9272216307
10120766390
1162195638
123453bb5a
131c034a04
141207910a
15a90797a
hex732bfb6

120766390 has 16 divisors (see below), whose sum is σ = 224392320. Its totient is φ = 46748160.

The previous prime is 120766381. The next prime is 120766423. The reversal of 120766390 is 93667021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194475 + ... + 195094.

It is an arithmetic number, because the mean of its divisors is an integer number (14024520).

Almost surely, 2120766390 is an apocalyptic number.

120766390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120766390 is a deficient number, since it is larger than the sum of its proper divisors (103625930).

120766390 is a wasteful number, since it uses less digits than its factorization.

120766390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389607.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 120766390 is about 10989.3762334356. The cubic root of 120766390 is about 494.2902319602.

The spelling of 120766390 in words is "one hundred twenty million, seven hundred sixty-six thousand, three hundred ninety".

Divisors: 1 2 5 10 31 62 155 310 389569 779138 1947845 3895690 12076639 24153278 60383195 120766390