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103120002 = 23241139729
BaseRepresentation
bin1100010010101…
…11110010000010
321012001001001100
412021113302002
5202344320002
614122115230
72361335256
oct611276202
9235031040
10103120002
1153232647
122a64bb16
131849696b
14d9a4266
1590be11c
hex6257c82

103120002 has 24 divisors (see below), whose sum is σ = 228877740. Its totient is φ = 33534720.

The previous prime is 103120001. The next prime is 103120007. The reversal of 103120002 is 200021301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76895361 + 26224641 = 8769^2 + 5121^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (103120001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69127 + ... + 70602.

Almost surely, 2103120002 is an apocalyptic number.

103120002 is an abundant number, since it is smaller than the sum of its proper divisors (125757738).

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

103120002 is a wasteful number, since it uses less digits than its factorization.

103120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139778 (or 139775 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 103120002 is about 10154.8019183045. The cubic root of 103120002 is about 468.9367878521.

Adding to 103120002 its reverse (200021301), we get a palindrome (303141303).

The spelling of 103120002 in words is "one hundred three million, one hundred twenty thousand, two".

Divisors: 1 2 3 6 9 18 41 82 123 246 369 738 139729 279458 419187 838374 1257561 2515122 5728889 11457778 17186667 34373334 51560001 103120002