Base | Representation |
---|---|
bin | 101001111010011010… |
… | …1101010010101100101 |
3 | 22121022202011001221100 |
4 | 1103310311222111211 |
5 | 2433313301204134 |
6 | 105203151310313 |
7 | 6334313222121 |
oct | 1236465522545 |
9 | 277282131840 |
10 | 90007053669 |
11 | 351986a9675 |
12 | 1553b21b399 |
13 | 8645421a50 |
14 | 44dbc16581 |
15 | 251bcc1999 |
hex | 14f4d6a565 |
90007053669 has 24 divisors (see below), whose sum is σ = 147379974560. Its totient is φ = 52473746592.
The previous prime is 90007053637. The next prime is 90007053709. The reversal of 90007053669 is 96635070009.
It is not a de Polignac number, because 90007053669 - 25 = 90007053637 is a prime.
It is a super-2 number, since 2×900070536692 (a number of 23 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90007053629) 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, 20242279 + ... + 20246724.
Almost surely, 290007053669 is an apocalyptic number.
It is an amenable number.
90007053669 is a deficient number, since it is larger than the sum of its proper divisors (57372920891).
90007053669 is a wasteful number, since it uses less digits than its factorization.
90007053669 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40489041 (or 40489038 counting only the distinct ones).
The product of its (nonzero) digits is 306180, while the sum is 45.
The spelling of 90007053669 in words is "ninety billion, seven million, fifty-three thousand, six hundred sixty-nine".
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