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121669683 = 3127319343
BaseRepresentation
bin1110100000010…
…00100000110011
322110221110102120
413100020200303
5222121412213
620023445323
73005114052
oct720104063
9273843376
10121669683
1162752263
12348b6843
131c28cbc5
1412232399
15aa35423
hex7408833

121669683 has 8 divisors (see below), whose sum is σ = 163504128. Its totient is φ = 80474184.

The previous prime is 121669657. The next prime is 121669693. The reversal of 121669683 is 386966121.

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

It is not a de Polignac number, because 121669683 - 226 = 54560819 is a prime.

It is a super-2 number, since 2×1216696832 = 29607023522640978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121669633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159291 + ... + 160052.

It is an arithmetic number, because the mean of its divisors is an integer number (20438016).

Almost surely, 2121669683 is an apocalyptic number.

121669683 is a deficient number, since it is larger than the sum of its proper divisors (41834445).

121669683 is a wasteful number, since it uses less digits than its factorization.

121669683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319473.

The product of its digits is 93312, while the sum is 42.

The square root of 121669683 is about 11030.3981342470. The cubic root of 121669683 is about 495.5195483630.

The spelling of 121669683 in words is "one hundred twenty-one million, six hundred sixty-nine thousand, six hundred eighty-three".

Divisors: 1 3 127 381 319343 958029 40556561 121669683