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140375641 = 7253191283
BaseRepresentation
bin10000101110111…
…11011001011001
3100210010211011211
420113133121121
5241414010031
621532423121
73323113300
oct1027373131
9323124154
10140375641
117226932a
123b017aa1
132310c313
1414901437
15c4ccbb1
hex85df659

140375641 has 24 divisors (see below), whose sum is σ = 167837184. Its totient is φ = 117018720.

The previous prime is 140375639. The next prime is 140375663. The reversal of 140375641 is 146573041.

It is not a de Polignac number, because 140375641 - 21 = 140375639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140375621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 495886 + ... + 496168.

It is an arithmetic number, because the mean of its divisors is an integer number (6993216).

Almost surely, 2140375641 is an apocalyptic number.

It is an amenable number.

140375641 is a deficient number, since it is larger than the sum of its proper divisors (27461543).

140375641 is a wasteful number, since it uses less digits than its factorization.

140375641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 140375641 is about 11848.0226620310. The cubic root of 140375641 is about 519.7134034627.

The spelling of 140375641 in words is "one hundred forty million, three hundred seventy-five thousand, six hundred forty-one".

Divisors: 1 7 49 53 191 283 371 1337 1981 2597 9359 10123 13867 14999 54053 70861 104993 378371 496027 734951 2648597 2864809 20053663 140375641