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100030231020 = 22358947939107
BaseRepresentation
bin101110100101001000…
…1000011000111101100
3100120012021112020102010
41131022101003013230
53114330214343040
6113541523001220
710140561635406
oct1351221030754
9316167466363
10100030231020
1139471504115
1217477b09210
139581b65915
144bad08db76
152906c0be80
hex174a4431ec

100030231020 has 96 divisors (see below), whose sum is σ = 283830220800. Its totient is φ = 26319276544.

The previous prime is 100030230991. The next prime is 100030231031. The reversal of 100030231020 is 20132030001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 100030230987 and 100030231005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2538307 + ... + 2577413.

It is an arithmetic number, because the mean of its divisors is an integer number (2956564800).

Almost surely, 2100030231020 is an apocalyptic number.

100030231020 is a gapful number since it is divisible by the number (10) 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 100030231020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141915110400).

100030231020 is an abundant number, since it is smaller than the sum of its proper divisors (183799989780).

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

100030231020 is a wasteful number, since it uses less digits than its factorization.

100030231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39687 (or 39685 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 100030231020 its reverse (20132030001), we get a palindrome (120162261021).

The spelling of 100030231020 in words is "one hundred billion, thirty million, two hundred thirty-one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 89 178 267 356 445 479 534 890 958 1068 1335 1437 1780 1916 2395 2670 2874 4790 5340 5748 7185 9580 14370 28740 39107 42631 78214 85262 117321 127893 156428 170524 195535 213155 234642 255786 391070 426310 469284 511572 586605 639465 782140 852620 1173210 1278930 2346420 2557860 3480523 6961046 10441569 13922092 17402615 18732253 20883138 34805230 37464506 41766276 52207845 56196759 69610460 74929012 93661265 104415690 112393518 187322530 208831380 224787036 280983795 374645060 561967590 1123935180 1667170517 3334341034 5001511551 6668682068 8335852585 10003023102 16671705170 20006046204 25007557755 33343410340 50015115510 100030231020