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40039141540 = 22517313376237
BaseRepresentation
bin100101010010100001…
…001101000010100100
310211100101201010121011
4211102201031002210
51124000010012130
630221013432004
72615131042036
oct452241150244
9124311633534
1040039141540
1115a87062722
12791503b604
133a11208438
141d1b879c56
15109516952a
hex95284d0a4

40039141540 has 48 divisors (see below), whose sum is σ = 89312881392. Its totient is φ = 15025360896.

The previous prime is 40039141531. The next prime is 40039141547. The reversal of 40039141540 is 4514193004.

It can be written as a sum of positive squares in 8 ways, for example, as 32741284 + 40006400256 = 5722^2 + 200016^2 .

It is not an unprimeable number, because it can be changed into a prime (40039141547) 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 15 ways as a sum of consecutive naturals, for example, 81699 + ... + 294538.

It is an arithmetic number, because the mean of its divisors is an integer number (1860685029).

Almost surely, 240039141540 is an apocalyptic number.

It is an amenable number.

40039141540 is an abundant number, since it is smaller than the sum of its proper divisors (49273739852).

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

40039141540 is a wasteful number, since it uses less digits than its factorization.

40039141540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376576 (or 376574 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 40039141540 in words is "forty billion, thirty-nine million, one hundred forty-one thousand, five hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 313 340 626 1252 1565 3130 5321 6260 10642 21284 26605 53210 106420 376237 752474 1504948 1881185 3762370 6396029 7524740 12792058 25584116 31980145 63960290 117762181 127920580 235524362 471048724 588810905 1177621810 2001957077 2355243620 4003914154 8007828308 10009785385 20019570770 40039141540