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102015030 = 23513261577
BaseRepresentation
bin1100001010010…
…10000000110110
321002221220022110
412011022000312
5202103440110
614042311450
72346053625
oct605120066
9232856273
10102015030
1152648447
122a1b8586
131819aa30
14d7976bc
158e51a20
hex614a036

102015030 has 32 divisors (see below), whose sum is σ = 263670624. Its totient is φ = 25111296.

The previous prime is 102015013. The next prime is 102015041. The reversal of 102015030 is 30510201.

It is a junction number, because it is equal to n+sod(n) for n = 102014997 and 102015015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130399 + ... + 131178.

It is an arithmetic number, because the mean of its divisors is an integer number (8239707).

Almost surely, 2102015030 is an apocalyptic number.

102015030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102015030 is an abundant number, since it is smaller than the sum of its proper divisors (161655594).

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

102015030 is a wasteful number, since it uses less digits than its factorization.

102015030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261600.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 102015030 is about 10100.2490068315. The cubic root of 102015030 is about 467.2558210877.

Adding to 102015030 its reverse (30510201), we get a palindrome (132525231).

The spelling of 102015030 in words is "one hundred two million, fifteen thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 261577 523154 784731 1307885 1569462 2615770 3400501 3923655 6801002 7847310 10201503 17002505 20403006 34005010 51007515 102015030