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102420153 = 3311675147
BaseRepresentation
bin1100001101011…
…00111010111001
321010201111001000
412012230322321
5202204421103
614055115213
72352362013
oct606547271
9233644030
10102420153
11528a4860
122a372b09
13182b0254
14d8611b3
158ed1aa3
hex61aceb9

102420153 has 32 divisors (see below), whose sum is σ = 168030720. Its totient is φ = 61134480.

The previous prime is 102420151. The next prime is 102420163. The reversal of 102420153 is 351024201.

It is not a de Polignac number, because 102420153 - 21 = 102420151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102420151) 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, 17326 + ... + 22472.

It is an arithmetic number, because the mean of its divisors is an integer number (5250960).

Almost surely, 2102420153 is an apocalyptic number.

It is an amenable number.

102420153 is a deficient number, since it is larger than the sum of its proper divisors (65610567).

102420153 is a wasteful number, since it uses less digits than its factorization.

102420153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5234 (or 5228 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102420153 is about 10120.2842351389. The cubic root of 102420153 is about 467.8735276266.

Adding to 102420153 its reverse (351024201), we get a palindrome (453444354).

The spelling of 102420153 in words is "one hundred two million, four hundred twenty thousand, one hundred fifty-three".

Divisors: 1 3 9 11 27 33 67 99 201 297 603 737 1809 2211 5147 6633 15441 19899 46323 56617 138969 169851 344849 509553 1034547 1528659 3103641 3793339 9310923 11380017 34140051 102420153