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102030211023 = 31317283543787
BaseRepresentation
bin101111100000101111…
…0010111011111001111
3100202100122211202012120
41133001132113133033
53132424213223043
6114512205304023
710241255325036
oct1370136273717
9322318752176
10102030211023
113a2a8437754
1217935865013
139810303b40
144d1c94171d
1529c25b8983
hex17c17977cf

102030211023 has 32 divisors (see below), whose sum is σ = 155671278336. Its totient is φ = 58885498368.

The previous prime is 102030210977. The next prime is 102030211037. The reversal of 102030211023 is 320112030201.

It is not a de Polignac number, because 102030211023 - 26 = 102030210959 is a prime.

It is a super-2 number, since 2×1020302110232 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102030210993 and 102030211011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030211523) 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, 84265 + ... + 459522.

It is an arithmetic number, because the mean of its divisors is an integer number (4864727448).

Almost surely, 2102030211023 is an apocalyptic number.

102030211023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102030211023 is a deficient number, since it is larger than the sum of its proper divisors (53641067313).

102030211023 is a wasteful number, since it uses less digits than its factorization.

102030211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544103.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 102030211023 its reverse (320112030201), we get a palindrome (422142241224).

The spelling of 102030211023 in words is "one hundred two billion, thirty million, two hundred eleven thousand, twenty-three".

Divisors: 1 3 13 17 39 51 221 283 663 849 3679 4811 11037 14433 62543 187629 543787 1631361 7069231 9244379 21207693 27733137 120176927 153891721 360530781 461675163 2000592373 2616159257 6001777119 7848477771 34010070341 102030211023