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121930574 = 2149409163
BaseRepresentation
bin1110100010010…
…00001101001110
322111102201022012
413101020031032
5222203234244
620033221222
73010251503
oct721101516
9274381265
10121930574
1162910277
1234a01812
131c35188c
141229d4aa
15aa8789e
hex744834e

121930574 has 8 divisors (see below), whose sum is σ = 184123800. Its totient is φ = 60555976.

The previous prime is 121930519. The next prime is 121930583. The reversal of 121930574 is 475039121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121930574.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204284 + ... + 204879.

It is an arithmetic number, because the mean of its divisors is an integer number (23015475).

Almost surely, 2121930574 is an apocalyptic number.

121930574 is a deficient number, since it is larger than the sum of its proper divisors (62193226).

121930574 is a wasteful number, since it uses less digits than its factorization.

121930574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409314.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 121930574 is about 11042.2178025974. The cubic root of 121930574 is about 495.8734691769.

Adding to 121930574 its reverse (475039121), we get a palindrome (596969695).

The spelling of 121930574 in words is "one hundred twenty-one million, nine hundred thirty thousand, five hundred seventy-four".

Divisors: 1 2 149 298 409163 818326 60965287 121930574