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145001454 = 23137126183
BaseRepresentation
bin10001010010010…
…00101111101110
3101002211211121020
420221020233232
5244110021304
622215515010
73410330523
oct1051105756
9332754536
10145001454
1174938814
1240688a66
132406b9a0
141538714a
15cae35d9
hex8a48bee

145001454 has 32 divisors (see below), whose sum is σ = 316721664. Its totient is φ = 43985760.

The previous prime is 145001447. The next prime is 145001561. The reversal of 145001454 is 454100541.

It is a happy number.

145001454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1450014542 = 42050843324228232, which contains 22 as substring.

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, 7554 + ... + 18629.

It is an arithmetic number, because the mean of its divisors is an integer number (9897552).

Almost surely, 2145001454 is an apocalyptic number.

145001454 is an abundant number, since it is smaller than the sum of its proper divisors (171720210).

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

145001454 is a wasteful number, since it uses less digits than its factorization.

145001454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26272.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145001454 is about 12041.6549527048. The cubic root of 145001454 is about 525.3605432703.

Adding to 145001454 its reverse (454100541), we get a palindrome (599101995).

The spelling of 145001454 in words is "one hundred forty-five million, one thousand, four hundred fifty-four".

Divisors: 1 2 3 6 13 26 39 71 78 142 213 426 923 1846 2769 5538 26183 52366 78549 157098 340379 680758 1021137 1858993 2042274 3717986 5576979 11153958 24166909 48333818 72500727 145001454