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30263063808 = 2831719121997
BaseRepresentation
bin11100001011110100…
…011011010100000000
32220010002021221002010
4130023310123110000
5443434321020213
621522550252520
72120642540505
oct341364332400
986102257063
1030263063808
111191a78a83a
125a47057140
132b13a2ca63
1416713654ac
15bc1c8dac3
hex70bd1b500

30263063808 has 144 divisors (see below), whose sum is σ = 89771008320. Its totient is φ = 8994521088.

The previous prime is 30263063801. The next prime is 30263063819. The reversal of 30263063808 is 80836036203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30263063801) 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, 187066 + ... + 309062.

It is an arithmetic number, because the mean of its divisors is an integer number (623409780).

Almost surely, 230263063808 is an apocalyptic number.

30263063808 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30263063808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44885504160).

30263063808 is an abundant number, since it is smaller than the sum of its proper divisors (59507944512).

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

30263063808 is a wasteful number, since it uses less digits than its factorization.

30263063808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122052 (or 122038 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 30263063808 in words is "thirty billion, two hundred sixty-three million, sixty-three thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 17 19 24 32 34 38 48 51 57 64 68 76 96 102 114 128 136 152 192 204 228 256 272 304 323 384 408 456 544 608 646 768 816 912 969 1088 1216 1292 1632 1824 1938 2176 2432 2584 3264 3648 3876 4352 4864 5168 6528 7296 7752 10336 13056 14592 15504 20672 31008 41344 62016 82688 121997 124032 243994 248064 365991 487988 731982 975976 1463964 1951952 2073949 2317943 2927928 3903904 4147898 4635886 5855856 6221847 6953829 7807808 8295796 9271772 11711712 12443694 13907658 15615616 16591592 18543544 23423424 24887388 27815316 31231232 33183184 37087088 39405031 46846848 49774776 55630632 66366368 74174176 78810062 93693696 99549552 111261264 118215093 132732736 148348352 157620124 199099104 222522528 236430186 265465472 296696704 315240248 398198208 445045056 472860372 530930944 593393408 630480496 796396416 890090112 945720744 1260960992 1592792832 1780180224 1891441488 2521921984 3782882976 5043843968 7565765952 10087687936 15131531904 30263063808