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121190957 = 4147611031
BaseRepresentation
bin1110011100100…
…11101000101101
322110001010201222
413032103220231
5222011102312
620005313125
73001051256
oct716235055
9273033658
10121190957
1162455618
12347057a5
131c153034
1412149b2d
15a98d672
hex7393a2d

121190957 has 16 divisors (see below), whose sum is σ = 128991744. Its totient is φ = 113712000.

The previous prime is 121190921. The next prime is 121190959. The reversal of 121190957 is 759091121.

It is a cyclic number.

It is not a de Polignac number, because 121190957 - 210 = 121189933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121190959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117032 + ... + 118062.

It is an arithmetic number, because the mean of its divisors is an integer number (8061984).

Almost surely, 2121190957 is an apocalyptic number.

It is an amenable number.

121190957 is a deficient number, since it is larger than the sum of its proper divisors (7800787).

121190957 is a wasteful number, since it uses less digits than its factorization.

121190957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180.

The product of its (nonzero) digits is 5670, while the sum is 35.

The square root of 121190957 is about 11008.6764417890. The cubic root of 121190957 is about 494.8687976593.

The spelling of 121190957 in words is "one hundred twenty-one million, one hundred ninety thousand, nine hundred fifty-seven".

Divisors: 1 41 47 61 1031 1927 2501 2867 42271 48457 62891 117547 1986737 2578531 2955877 121190957