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103142454 = 2337694561
BaseRepresentation
bin1100010010111…
…01010000110110
321012002011211220
412021131100312
5202401024304
614122411210
72361460602
oct611352066
9235064756
10103142454
11532484a8
122a660b06
13184a3c4c
14d9ac502
1590c5ad9
hex625d436

103142454 has 16 divisors (see below), whose sum is σ = 206384880. Its totient is φ = 34364160.

The previous prime is 103142453. The next prime is 103142471. The reversal of 103142454 is 454241301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103142453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20334 + ... + 24894.

It is an arithmetic number, because the mean of its divisors is an integer number (12899055).

Almost surely, 2103142454 is an apocalyptic number.

103142454 is an abundant number, since it is smaller than the sum of its proper divisors (103242426).

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

103142454 is a wasteful number, since it uses less digits than its factorization.

103142454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8335.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 103142454 is about 10155.9073449889. The cubic root of 103142454 is about 468.9708187692.

Adding to 103142454 its reverse (454241301), we get a palindrome (557383755).

The spelling of 103142454 in words is "one hundred three million, one hundred forty-two thousand, four hundred fifty-four".

Divisors: 1 2 3 6 3769 4561 7538 9122 11307 13683 22614 27366 17190409 34380818 51571227 103142454