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38869231156 = 22723293205993
BaseRepresentation
bin100100001100110010…
…010110011000110100
310201022212022112020221
4210030302112120310
51114101010344111
625504542304124
72544134004430
oct441462263064
9121285275227
1038869231156
1115536738738
127649288044
133885a1a982
141c4a33d9c0
1510275c4371
hex90cc96634

38869231156 has 48 divisors (see below), whose sum is σ = 81395645184. Its totient is φ = 15879511296.

The previous prime is 38869231109. The next prime is 38869231169. The reversal of 38869231156 is 65113296883.

It is a super-2 number, since 2×388692311562 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85696 + ... + 291688.

It is an arithmetic number, because the mean of its divisors is an integer number (1695742608).

Almost surely, 238869231156 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 38869231156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40697822592).

38869231156 is an abundant number, since it is smaller than the sum of its proper divisors (42526414028).

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

38869231156 is a wasteful number, since it uses less digits than its factorization.

38869231156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206320 (or 206318 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 52.

The spelling of 38869231156 in words is "thirty-eight billion, eight hundred sixty-nine million, two hundred thirty-one thousand, one hundred fifty-six".

Divisors: 1 2 4 7 14 23 28 46 92 161 293 322 586 644 1172 2051 4102 6739 8204 13478 26956 47173 94346 188692 205993 411986 823972 1441951 2883902 4737839 5767804 9475678 18951356 33164873 60355949 66329746 120711898 132659492 241423796 422491643 844983286 1388186827 1689966572 2776373654 5552747308 9717307789 19434615578 38869231156