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107820972 = 223272193217
BaseRepresentation
bin1100110110100…
…11011110101100
321111212212120100
412123103132230
5210100232342
614410551100
72446314600
oct633233654
9244785510
10107820972
1155953546
1230138490
13194515bc
1410469500
1596ebe4c
hex66d37ac

107820972 has 108 divisors (see below), whose sum is σ = 333835320. Its totient is φ = 29175552.

The previous prime is 107820959. The next prime is 107821003. The reversal of 107820972 is 279028701.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 31908 + ... + 35124.

Almost surely, 2107820972 is an apocalyptic number.

107820972 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 107820972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166917660).

107820972 is an abundant number, since it is smaller than the sum of its proper divisors (226014348).

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

107820972 is a wasteful number, since it uses less digits than its factorization.

107820972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260 (or 3248 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 107820972 is about 10383.6877842123. The cubic root of 107820972 is about 475.9570318769.

The spelling of 107820972 in words is "one hundred seven million, eight hundred twenty thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 19 21 28 36 38 42 49 57 63 76 84 98 114 126 133 147 171 196 228 252 266 294 342 399 441 532 588 684 798 882 931 1197 1596 1764 1862 2394 2793 3217 3724 4788 5586 6434 8379 9651 11172 12868 16758 19302 22519 28953 33516 38604 45038 57906 61123 67557 90076 115812 122246 135114 157633 183369 202671 244492 270228 315266 366738 405342 427861 472899 550107 630532 733476 810684 855722 945798 1100214 1283583 1418697 1711444 1891596 2200428 2567166 2837394 2995027 3850749 5134332 5674788 5990054 7701498 8985081 11980108 15402996 17970162 26955243 35940324 53910486 107820972