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10102218072 = 23319434431163
BaseRepresentation
bin10010110100010001…
…11001110101011000
3222002001002211221220
421122020321311120
5131142131434242
64350233332040
7505225302552
oct113210716530
928061084856
1010102218072
114314490a61
121b5b267020
13c4cc2973b
146bb9704d2
153e1d4ebec
hex25a239d58

10102218072 has 128 divisors (see below), whose sum is σ = 27287884800. Its totient is φ = 3106276992.

The previous prime is 10102218059. The next prime is 10102218073. The reversal of 10102218072 is 27081220101.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102218073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8685763 + ... + 8686925.

It is an arithmetic number, because the mean of its divisors is an integer number (213186600).

Almost surely, 210102218072 is an apocalyptic number.

10102218072 is a gapful number since it is divisible by the number (12) 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 10102218072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13643942400).

10102218072 is an abundant number, since it is smaller than the sum of its proper divisors (17185666728).

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

10102218072 is a wasteful number, since it uses less digits than its factorization.

10102218072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677 (or 1673 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

Adding to 10102218072 its reverse (27081220101), we get a palindrome (37183438173).

The spelling of 10102218072 in words is "ten billion, one hundred two million, two hundred eighteen thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 19 24 38 43 57 76 86 114 129 152 172 228 258 344 443 456 516 817 886 1032 1163 1329 1634 1772 2326 2451 2658 3268 3489 3544 4652 4902 5316 6536 6978 8417 9304 9804 10632 13956 16834 19049 19608 22097 25251 27912 33668 38098 44194 50009 50502 57147 66291 67336 76196 88388 100018 101004 114294 132582 150027 152392 176776 200036 202008 228588 265164 300054 361931 400072 457176 515209 530328 600108 723862 950171 1030418 1085793 1200216 1447724 1545627 1900342 2060836 2171586 2850513 2895448 3091254 3800684 4121672 4343172 5701026 6182508 7601368 8686344 9788971 11402052 12365016 19577942 22153987 22804104 29366913 39155884 44307974 58733826 66461961 78311768 88615948 117467652 132923922 177231896 234935304 265847844 420925753 531695688 841851506 1262777259 1683703012 2525554518 3367406024 5051109036 10102218072