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40145230260 = 2233574343019
BaseRepresentation
bin100101011000110101…
…111001100110110100
310211121210022222222000
4211120311321212310
51124204134332020
630235323335300
72620556553432
oct453065714664
9124553288860
1040145230260
1116030a32753
127944681530
133a2a1a1425
141d2b9b3d52
15109e623090
hex958d799b4

40145230260 has 48 divisors (see below), whose sum is σ = 124896273600. Its totient is φ = 10705394592.

The previous prime is 40145230219. The next prime is 40145230271. The reversal of 40145230260 is 6203254104.

40145230260 is a `hidden beast` number, since 401 + 4 + 5 + 230 + 26 + 0 = 666.

It is a super-2 number, since 2×401452302602 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37170970 + ... + 37172049.

It is an arithmetic number, because the mean of its divisors is an integer number (2602005700).

Almost surely, 240145230260 is an apocalyptic number.

It is an amenable number.

40145230260 is an abundant number, since it is smaller than the sum of its proper divisors (84751043340).

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

40145230260 is a wasteful number, since it uses less digits than its factorization.

40145230260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74343037 (or 74343029 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 40145230260 its reverse (6203254104), we get a palindrome (46348484364).

The spelling of 40145230260 in words is "forty billion, one hundred forty-five million, two hundred thirty thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 74343019 148686038 223029057 297372076 371715095 446058114 669087171 743430190 892116228 1115145285 1338174342 1486860380 2007261513 2230290570 2676348684 3345435855 4014523026 4460581140 6690871710 8029046052 10036307565 13381743420 20072615130 40145230260