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20069426704 = 2417197949157
BaseRepresentation
bin10010101100001110…
…110010011000010000
31220210200011111210011
4102230032302120100
5312100233123304
613115245244304
71310224212055
oct225416623020
956720144704
1020069426704
118569739368
123a81263694
131b7aba5522
14d855d902c
157c6dd1c04
hex4ac3b2610

20069426704 has 80 divisors (see below), whose sum is σ = 43888262400. Its totient is φ = 8833923072.

The previous prime is 20069426701. The next prime is 20069426719. The reversal of 20069426704 is 40762496002.

It is not an unprimeable number, because it can be changed into a prime (20069426701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383694 + ... + 432850.

It is an arithmetic number, because the mean of its divisors is an integer number (548603280).

Almost surely, 220069426704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20069426704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21944131200).

20069426704 is an abundant number, since it is smaller than the sum of its proper divisors (23818835696).

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

20069426704 is a wasteful number, since it uses less digits than its factorization.

20069426704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49280 (or 49274 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 20069426704 in words is "twenty billion, sixty-nine million, four hundred twenty-six thousand, seven hundred four".

Divisors: 1 2 4 8 16 17 19 34 38 68 76 79 136 152 158 272 304 316 323 632 646 1264 1292 1343 1501 2584 2686 3002 5168 5372 6004 10744 12008 21488 24016 25517 49157 51034 98314 102068 196628 204136 393256 408272 786512 835669 933983 1671338 1867966 3342676 3735932 3883403 6685352 7471864 7766806 13370704 14943728 15533612 15877711 31067224 31755422 62134448 63510844 66017851 73784657 127021688 132035702 147569314 254043376 264071404 295138628 528142808 590277256 1056285616 1180554512 1254339169 2508678338 5017356676 10034713352 20069426704