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121710069 = 32131278191
BaseRepresentation
bin1110100000100…
…10010111110101
322111000111211100
413100102113311
5222124210234
620024400313
73005342565
oct720222765
9274014740
10121710069
116277a638
1234916099
131c2a53c0
1412242da5
15aa42399
hex74125f5

121710069 has 24 divisors (see below), whose sum is σ = 190840832. Its totient is φ = 74299680.

The previous prime is 121710059. The next prime is 121710073. The reversal of 121710069 is 960017121.

It is not a de Polignac number, because 121710069 - 27 = 121709941 is a prime.

It is a super-2 number, since 2×1217100692 = 29626681791969522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121710019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10764 + ... + 18954.

Almost surely, 2121710069 is an apocalyptic number.

It is an amenable number.

121710069 is a deficient number, since it is larger than the sum of its proper divisors (69130763).

121710069 is a wasteful number, since it uses less digits than its factorization.

121710069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8337 (or 8334 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 121710069 is about 11032.2286506399. The cubic root of 121710069 is about 495.5743684798.

The spelling of 121710069 in words is "one hundred twenty-one million, seven hundred ten thousand, sixty-nine".

Divisors: 1 3 9 13 39 117 127 381 1143 1651 4953 8191 14859 24573 73719 106483 319449 958347 1040257 3120771 9362313 13523341 40570023 121710069