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40253654380 = 22531388116729
BaseRepresentation
bin100101011111010011…
…100000010101101100
310211220100100111220011
4211133103200111230
51124414413420010
630254155303004
72623344262642
oct453723402554
9124810314804
1040253654380
1116087158365
127974a4aa64
133a467a4404
141d3c159192
1510a8ddda8a
hex95f4e056c

40253654380 has 48 divisors (see below), whose sum is σ = 87287235840. Its totient is φ = 15577113600.

The previous prime is 40253654351. The next prime is 40253654381. The reversal of 40253654380 is 8345635204.

40253654380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40253654381) 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, 2397856 + ... + 2414584.

It is an arithmetic number, because the mean of its divisors is an integer number (1818484080).

Almost surely, 240253654380 is an apocalyptic number.

It is an amenable number.

40253654380 is an abundant number, since it is smaller than the sum of its proper divisors (47033581460).

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

40253654380 is a wasteful number, since it uses less digits than its factorization.

40253654380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20650 (or 20648 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 40253654380 in words is "forty billion, two hundred fifty-three million, six hundred fifty-four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 3881 7762 15524 16729 19405 33458 38810 66916 77620 83645 120311 167290 240622 334580 481244 518599 601555 1037198 1203110 2074396 2406220 2592995 5185990 10371980 64925249 129850498 259700996 324626245 649252490 1298504980 2012682719 4025365438 8050730876 10063413595 20126827190 40253654380