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103031246145 = 358382756021
BaseRepresentation
bin101111111110100100…
…1000000110101000001
3100211221102110121020110
41133331021000311001
53142001444334040
6115155405101533
710305132066552
oct1377511006501
9324842417213
10103031246145
113a7714a8203
1217b74b578a9
13993c814209
144db587c329
152a30401980
hex17fd240d41

103031246145 has 16 divisors (see below), whose sum is σ = 166836140352. Its totient is φ = 54287949120.

The previous prime is 103031246141. The next prime is 103031246179. The reversal of 103031246145 is 541642130301.

It is not a de Polignac number, because 103031246145 - 22 = 103031246141 is a prime.

It is a super-2 number, since 2×1030312461452 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103031246141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41376766 + ... + 41379255.

It is an arithmetic number, because the mean of its divisors is an integer number (10427258772).

Almost surely, 2103031246145 is an apocalyptic number.

103031246145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103031246145 is a deficient number, since it is larger than the sum of its proper divisors (63804894207).

103031246145 is an equidigital number, since it uses as much as digits as its factorization.

103031246145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82756112.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 103031246145 its reverse (541642130301), we get a palindrome (644673376446).

The spelling of 103031246145 in words is "one hundred three billion, thirty-one million, two hundred forty-six thousand, one hundred forty-five".

Divisors: 1 3 5 15 83 249 415 1245 82756021 248268063 413780105 1241340315 6868749743 20606249229 34343748715 103031246145