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141105640 = 23513271357
BaseRepresentation
bin10000110100100…
…01100111101000
3100211111220112211
420122101213220
5242110340030
622000214504
73332243464
oct1032214750
9324456484
10141105640
1172717835
123b30a434
1323306680
1414a514a4
15c5c412a
hex86919e8

141105640 has 32 divisors (see below), whose sum is σ = 341911080. Its totient is φ = 52100352.

The previous prime is 141105637. The next prime is 141105659. The reversal of 141105640 is 46501141.

It can be written as a sum of positive squares in 4 ways, for example, as 95218564 + 45887076 = 9758^2 + 6774^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135159 + ... + 136198.

Almost surely, 2141105640 is an apocalyptic number.

141105640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141105640 is an abundant number, since it is smaller than the sum of its proper divisors (200805440).

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

141105640 is a wasteful number, since it uses less digits than its factorization.

141105640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271381 (or 271377 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 141105640 is about 11878.7895006183. The cubic root of 141105640 is about 520.6127392368.

Adding to 141105640 its reverse (46501141), we get a palindrome (187606781).

The spelling of 141105640 in words is "one hundred forty-one million, one hundred five thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 271357 542714 1085428 1356785 2170856 2713570 3527641 5427140 7055282 10854280 14110564 17638205 28221128 35276410 70552820 141105640