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102020231322 = 2337872400589
BaseRepresentation
bin101111100000011100…
…0010011000010011010
3100202022222001201122000
41133000320103002122
53132414134400242
6114511211341430
710241104441512
oct1370070230232
9322288051560
10102020231322
113a2a2840869
1217932451876
13980b21b5a9
144d1b4a4842
1529c1796a4c
hex17c0e1309a

102020231322 has 32 divisors (see below), whose sum is σ = 226999790400. Its totient is φ = 33963519024.

The previous prime is 102020231213. The next prime is 102020231329. The reversal of 102020231322 is 223132020201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102020231295 and 102020231304.

It is not an unprimeable number, because it can be changed into a prime (102020231329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157797 + ... + 1242792.

It is an arithmetic number, because the mean of its divisors is an integer number (7093743450).

Almost surely, 2102020231322 is an apocalyptic number.

102020231322 is an abundant number, since it is smaller than the sum of its proper divisors (124979559078).

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

102020231322 is a wasteful number, since it uses less digits than its factorization.

102020231322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401387 (or 2401381 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 102020231322 its reverse (223132020201), we get a palindrome (325152251523).

The spelling of 102020231322 in words is "one hundred two billion, twenty million, two hundred thirty-one thousand, three hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 787 1574 2361 4722 7083 14166 21249 42498 2400589 4801178 7201767 14403534 21605301 43210602 64815903 129631806 1889263543 3778527086 5667790629 11335581258 17003371887 34006743774 51010115661 102020231322