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102013231323220 = 225720693257108131
BaseRepresentation
bin10111001100011111001110…
…011010100101100001010100
3111101012100222111020020111221
4113030133032122211201110
5101332341044204320340
61000544122000540124
730326132654061550
oct2714371632454124
9441170874206457
10102013231323220
112a560628669a28
12b536a20921644
1344bca63982649
141b29676a44860
15bbd8e919444a
hex5cc7ce6a5854

102013231323220 has 96 divisors (see below), whose sum is σ = 245027561829120. Its totient is φ = 34948003537920.

The previous prime is 102013231323181. The next prime is 102013231323253. The reversal of 102013231323220 is 22323132310201.

It is a super-2 number, since 2×1020132313232202 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 943368555 + ... + 943476685.

It is an arithmetic number, because the mean of its divisors is an integer number (2552370435720).

Almost surely, 2102013231323220 is an apocalyptic number.

102013231323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102013231323220 is an abundant number, since it is smaller than the sum of its proper divisors (143014330505900).

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

102013231323220 is a wasteful number, since it uses less digits than its factorization.

102013231323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113473 (or 113471 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 102013231323220 its reverse (22323132310201), we get a palindrome (124336363633421).

The spelling of 102013231323220 in words is "one hundred two trillion, thirteen billion, two hundred thirty-one million, three hundred twenty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2069 3257 4138 6514 8276 10345 13028 14483 16285 20690 22799 28966 32570 41380 45598 57932 65140 72415 91196 108131 113995 144830 216262 227990 289660 432524 455980 540655 756917 1081310 1513834 2162620 3027668 3784585 6738733 7569170 13477466 15138340 26954932 33693665 47171131 67387330 94342262 134774660 188684524 223723039 235855655 352182667 447446078 471711310 704365334 894892156 943422620 1118615195 1408730668 1566061273 1760913335 2237230390 2465278669 3132122546 3521826670 4474460780 4930557338 6264245092 7043653340 7830306365 9861114676 12326393345 15660612730 24652786690 31321225460 49305573380 728665938023 1457331876046 2914663752092 3643329690115 5100661566161 7286659380230 10201323132322 14573318760460 20402646264644 25503307830805 51006615661610 102013231323220