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102103011010 = 257111310200101
BaseRepresentation
bin101111100010111010…
…0000100111011000010
3100202112201211101000101
41133011310010323002
53133101332323020
6114523325513014
710243131162640
oct1370564047302
9322481741011
10102103011010
113a335540430
121795611276a
139822412c60
144d28492190
1529c8b9900a
hex17c5d04ec2

102103011010 has 64 divisors (see below), whose sum is σ = 246760867584. Its totient is φ = 29376288000.

The previous prime is 102103010993. The next prime is 102103011011. The reversal of 102103011010 is 10110301201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (102103011011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5090041 + ... + 5110060.

It is an arithmetic number, because the mean of its divisors is an integer number (3855638556).

Almost surely, 2102103011010 is an apocalyptic number.

102103011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102103011010 is an abundant number, since it is smaller than the sum of its proper divisors (144657856574).

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

102103011010 is a wasteful number, since it uses less digits than its factorization.

102103011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200139.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 102103011010 its reverse (10110301201), we get a palindrome (112213312211).

Subtracting from 102103011010 its reverse (10110301201), we obtain a square (91992709809 = 3033032).

The spelling of 102103011010 in words is "one hundred two billion, one hundred three million, eleven thousand, ten".

Divisors: 1 2 5 7 10 11 13 14 22 26 35 55 65 70 77 91 110 130 143 154 182 286 385 455 715 770 910 1001 1430 2002 5005 10010 10200101 20400202 51000505 71400707 102001010 112201111 132601313 142801414 224402222 265202626 357003535 561005555 663006565 714007070 785407777 928209191 1122011110 1326013130 1458614443 1570815554 1856418382 2917228886 3927038885 4641045955 7293072215 7854077770 9282091910 10210301101 14586144430 20420602202 51051505505 102103011010