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145036140 = 22357393271
BaseRepresentation
bin10001010010100…
…01001101101100
3101002220121011220
420221101031230
5244112124030
622220343340
73410533614
oct1051211554
9332817156
10145036140
1174961887
12406a4b50
1324081702
1415395a44
15caeda10
hex8a5136c

145036140 has 48 divisors (see below), whose sum is σ = 406775040. Its totient is φ = 38612160.

The previous prime is 145036127. The next prime is 145036141. The reversal of 145036140 is 41630541.

145036140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145036140.

It is not an unprimeable number, because it can be changed into a prime (145036141) 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, 42705 + ... + 45975.

It is an arithmetic number, because the mean of its divisors is an integer number (8474480).

Almost surely, 2145036140 is an apocalyptic number.

145036140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145036140 is an abundant number, since it is smaller than the sum of its proper divisors (261738900).

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

145036140 is a wasteful number, since it uses less digits than its factorization.

145036140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022 (or 4020 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 145036140 is about 12043.0951171200. The cubic root of 145036140 is about 525.4024306732.

Adding to 145036140 its reverse (41630541), we get a palindrome (186666681).

The spelling of 145036140 in words is "one hundred forty-five million, thirty-six thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 739 1478 2217 2956 3271 3695 4434 6542 7390 8868 9813 11085 13084 14780 16355 19626 22170 32710 39252 44340 49065 65420 98130 196260 2417269 4834538 7251807 9669076 12086345 14503614 24172690 29007228 36259035 48345380 72518070 145036140