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121408794 = 2341357649
BaseRepresentation
bin1110011110010…
…00110100011010
322110110012120000
413033020310122
5222040040134
620014113430
73002646333
oct717106432
9273405500
10121408794
1162594251
12347ab876
131c1cb230
14121a528a
15a9d2e99
hex73c8d1a

121408794 has 40 divisors (see below), whose sum is σ = 292977300. Its totient is φ = 37355904.

The previous prime is 121408783. The next prime is 121408799. The reversal of 121408794 is 497804121.

It can be written as a sum of positive squares in 2 ways, for example, as 118004769 + 3404025 = 10863^2 + 1845^2 .

It is not an unprimeable number, because it can be changed into a prime (121408799) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26719 + ... + 30930.

Almost surely, 2121408794 is an apocalyptic number.

121408794 is an abundant number, since it is smaller than the sum of its proper divisors (171568506).

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

121408794 is a wasteful number, since it uses less digits than its factorization.

121408794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57676 (or 57667 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 121408794 is about 11018.5658776449. The cubic root of 121408794 is about 495.1651239746.

The spelling of 121408794 in words is "one hundred twenty-one million, four hundred eight thousand, seven hundred ninety-four".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 81 117 162 234 351 702 1053 2106 57649 115298 172947 345894 518841 749437 1037682 1498874 1556523 2248311 3113046 4496622 4669569 6744933 9339138 13489866 20234799 40469598 60704397 121408794