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101288503974 = 23722239291663
BaseRepresentation
bin101111001010101000…
…0111110101010100110
3100200102222012010102010
41132111100332222212
53124414324111344
6114310432055050
710214011035600
oct1362520765246
9320388163363
10101288503974
1139a577a1219
1217769394486
139722750c28
144c8c22c170
15297c4088b9
hex179543eaa6

101288503974 has 96 divisors (see below), whose sum is σ = 237104824320. Its totient is φ = 28761481728.

The previous prime is 101288503961. The next prime is 101288504021. The reversal of 101288503974 is 479305882101.

It is a super-2 number, since 2×1012885039742 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60906267 + ... + 60907929.

It is an arithmetic number, because the mean of its divisors is an integer number (2469841920).

Almost surely, 2101288503974 is an apocalyptic number.

101288503974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101288503974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118552412160).

101288503974 is an abundant number, since it is smaller than the sum of its proper divisors (135816320346).

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

101288503974 is a wasteful number, since it uses less digits than its factorization.

101288503974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834 (or 2827 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 101288503974 in words is "one hundred one billion, two hundred eighty-eight million, five hundred three thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 223 294 446 669 929 1338 1561 1663 1858 2787 3122 3326 4683 4989 5574 6503 9366 9978 10927 11641 13006 19509 21854 23282 32781 34923 39018 45521 65562 69846 81487 91042 136563 162974 207167 244461 273126 370849 414334 488922 621501 741698 1112547 1243002 1450169 1544927 2225094 2595943 2900338 3089854 4350507 4634781 5191886 7787829 8701014 9269562 10151183 10814489 15575658 18171601 20302366 21628978 30453549 32443467 36343202 54514803 60907098 64886934 75701423 109029606 151402846 227104269 344518721 454208538 689037442 1033556163 2067112326 2411631047 4823262094 7234893141 14469786282 16881417329 33762834658 50644251987 101288503974