Search a number
-
+
102503415220 = 225172141140813
BaseRepresentation
bin101111101110110101…
…1011111110110110100
3100210120122021000022221
41133131223133312310
53134411333241340
6115031151532124
710256062440103
oct1373553376664
9323518230287
10102503415220
113a520561aa8
1217a4822a044
13988736651b
144d6572003a
1529edddc44a
hex17ddadfdb4

102503415220 has 48 divisors (see below), whose sum is σ = 228027432528. Its totient is φ = 38571223040.

The previous prime is 102503415193. The next prime is 102503415247. The reversal of 102503415220 is 22514305201.

It is an interprime number because it is at equal distance from previous prime (102503415193) and next prime (102503415247).

It can be written as a sum of positive squares in 8 ways, for example, as 9217152036 + 93286263184 = 96006^2 + 305428^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657534 + ... + 798346.

It is an arithmetic number, because the mean of its divisors is an integer number (4750571511).

Almost surely, 2102503415220 is an apocalyptic number.

102503415220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102503415220 is an abundant number, since it is smaller than the sum of its proper divisors (125524017308).

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

102503415220 is a wasteful number, since it uses less digits than its factorization.

102503415220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142980 (or 142978 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 102503415220 in words is "one hundred two billion, five hundred three million, four hundred fifteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 2141 4282 8564 10705 21410 36397 42820 72794 140813 145588 181985 281626 363970 563252 704065 727940 1408130 2393821 2816260 4787642 9575284 11969105 23938210 47876420 301480633 602961266 1205922532 1507403165 3014806330 5125170761 6029612660 10250341522 20500683044 25625853805 51251707610 102503415220