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38763813100 = 225217531034177
BaseRepresentation
bin100100000110100000…
…001101100011101100
310201001111221201212111
4210012200031203230
51113342014004400
625450255013404
72541413655235
oct440640154354
9121044851774
1038763813100
1115492186581
127619b0a264
133869c2b01c
141c3a33c08c
15101d1ee3ba
hex90680d8ec

38763813100 has 144 divisors (see below), whose sum is σ = 91649009088. Its totient is φ = 14175682560.

The previous prime is 38763813059. The next prime is 38763813103. The reversal of 38763813100 is 131836783.

It is a super-2 number, since 2×387638131002 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38763813103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9278212 + ... + 9282388.

It is an arithmetic number, because the mean of its divisors is an integer number (636451452).

Almost surely, 238763813100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38763813100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45824504544).

38763813100 is an abundant number, since it is smaller than the sum of its proper divisors (52885195988).

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

38763813100 is a wasteful number, since it uses less digits than its factorization.

38763813100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364 (or 4357 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 38763813100 in words is "thirty-eight billion, seven hundred sixty-three million, eight hundred thirteen thousand, one hundred".

Divisors: 1 2 4 5 10 17 20 25 34 50 53 68 85 100 103 106 170 206 212 265 340 412 425 515 530 850 901 1030 1060 1325 1700 1751 1802 2060 2575 2650 3502 3604 4177 4505 5150 5300 5459 7004 8354 8755 9010 10300 10918 16708 17510 18020 20885 21836 22525 27295 35020 41770 43775 45050 54590 71009 83540 87550 90100 92803 104425 109180 136475 142018 175100 185606 208850 221381 272950 284036 355045 371212 417700 430231 442762 464015 545900 710090 860462 885524 928030 1106905 1420180 1720924 1775225 1856060 2151155 2213810 2320075 3550450 3763477 4302310 4427620 4640150 5534525 7100900 7313927 7526954 8604620 9280300 10755775 11069050 14627854 15053908 18817385 21511550 22138100 22802243 29255708 36569635 37634770 43023100 45604486 73139270 75269540 91208972 94086925 114011215 146278540 182848175 188173850 228022430 365696350 376347700 387638131 456044860 570056075 731392700 775276262 1140112150 1550552524 1938190655 2280224300 3876381310 7752762620 9690953275 19381906550 38763813100