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108248153 = 138326781
BaseRepresentation
bin1100111001110…
…11110001011001
321112200120112212
412130323301121
5210202420103
614424044505
72453044166
oct634736131
9245616485
10108248153
1156115492
1230303735
1319570b80
141053b06d
1597837d8
hex673bc59

108248153 has 4 divisors (see below), whose sum is σ = 116574948. Its totient is φ = 99921360.

The previous prime is 108248141. The next prime is 108248171. The reversal of 108248153 is 351842801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351842801 = 2383147647.

It can be written as a sum of positive squares in 2 ways, for example, as 18983449 + 89264704 = 4357^2 + 9448^2 .

It is a cyclic number.

It is not a de Polignac number, because 108248153 - 26 = 108248089 is a prime.

It is a super-2 number, since 2×1082481532 = 23435325255822818, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (108248113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4163378 + ... + 4163403.

It is an arithmetic number, because the mean of its divisors is an integer number (29143737).

Almost surely, 2108248153 is an apocalyptic number.

108248153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

108248153 is a deficient number, since it is larger than the sum of its proper divisors (8326795).

108248153 is an equidigital number, since it uses as much as digits as its factorization.

108248153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8326794.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 108248153 is about 10404.2372618083. The cubic root of 108248153 is about 476.5847757886.

The spelling of 108248153 in words is "one hundred eight million, two hundred forty-eight thousand, one hundred fifty-three".

Divisors: 1 13 8326781 108248153