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121669710 = 2354055657
BaseRepresentation
bin1110100000010…
…00100001001110
322110221110110120
413100020201032
5222121412320
620023445410
73005114121
oct720104116
9273843416
10121669710
1162752288
12348b6866
131c28cc16
14122323b8
15aa35440
hex740884e

121669710 has 16 divisors (see below), whose sum is σ = 292007376. Its totient is φ = 32445248.

The previous prime is 121669693. The next prime is 121669721. The reversal of 121669710 is 17966121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2027799 + ... + 2027858.

It is an arithmetic number, because the mean of its divisors is an integer number (18250461).

Almost surely, 2121669710 is an apocalyptic number.

121669710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121669710 is an abundant number, since it is smaller than the sum of its proper divisors (170337666).

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

121669710 is a wasteful number, since it uses less digits than its factorization.

121669710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4055667.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 121669710 is about 11030.3993581375. The cubic root of 121669710 is about 495.5195850170.

The spelling of 121669710 in words is "one hundred twenty-one million, six hundred sixty-nine thousand, seven hundred ten".

Divisors: 1 2 3 5 6 10 15 30 4055657 8111314 12166971 20278285 24333942 40556570 60834855 121669710