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20769002708 = 2222742154331
BaseRepresentation
bin10011010101111011…
…011101010011010100
31222121102112122122112
4103111323131103110
5320013331041313
613312515450152
71333450416206
oct232573352324
958542478575
1020769002708
118898619153
1240375b6958
131c5cac691c
1410104a2776
1581851d8a8
hex4d5edd4d4

20769002708 has 24 divisors (see below), whose sum is σ = 36593253984. Its totient is φ = 10314007200.

The previous prime is 20769002707. The next prime is 20769002711. The reversal of 20769002708 is 80720096702.

It is a super-2 number, since 2×207690027082 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20769002707) 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, 355103 + ... + 409433.

It is an arithmetic number, because the mean of its divisors is an integer number (1524718916).

Almost surely, 220769002708 is an apocalyptic number.

It is an amenable number.

20769002708 is a deficient number, since it is larger than the sum of its proper divisors (15824251276).

20769002708 is a wasteful number, since it uses less digits than its factorization.

20769002708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54983 (or 54981 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 20769002708 in words is "twenty billion, seven hundred sixty-nine million, two thousand, seven hundred eight".

Divisors: 1 2 4 227 421 454 842 908 1684 54331 95567 108662 191134 217324 382268 12333137 22873351 24666274 45746702 49332548 91493404 5192250677 10384501354 20769002708