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102020023230 = 23523891423469
BaseRepresentation
bin101111100000011011…
…1100000001110111110
3100202022221200011011220
41133000313200032332
53132414111220410
6114511203054210
710241102614026
oct1370067401676
9322287604156
10102020023230
113a2a2709494
1217932371366
13980b177968
144d1b44ca86
1529c1755070
hex17c0de03be

102020023230 has 32 divisors (see below), whose sum is σ = 244950717600. Its totient is φ = 27193932672.

The previous prime is 102020023211. The next prime is 102020023277. The reversal of 102020023230 is 32320020201.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 640065 + ... + 783404.

It is an arithmetic number, because the mean of its divisors is an integer number (7654709925).

Almost surely, 2102020023230 is an apocalyptic number.

102020023230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102020023230 is an abundant number, since it is smaller than the sum of its proper divisors (142930694370).

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

102020023230 is a wasteful number, since it uses less digits than its factorization.

102020023230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425868.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 102020023230 its reverse (32320020201), we get a palindrome (134340043431).

The spelling of 102020023230 in words is "one hundred two billion, twenty million, twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2389 4778 7167 11945 14334 23890 35835 71670 1423469 2846938 4270407 7117345 8540814 14234690 21352035 42704070 3400667441 6801334882 10202002323 17003337205 20404004646 34006674410 51010011615 102020023230