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40156054440480 = 2532511172273531861
BaseRepresentation
bin10010010000101100011110…
…10111000100101000100000
312021011212210110212222011100
421020112033113010220200
520230404044414043410
6221223234200314400
711313115314643656
oct1110261727045040
9167155713788140
1040156054440480
11118820a5957a40
124606619472a00
131953913294284
149cb7c5daadd6
154998400d98c0
hex24858f5c4a20

40156054440480 has 1152 divisors, whose sum is σ = 159516895539456. Its totient is φ = 9091075276800.

The previous prime is 40156054440421. The next prime is 40156054440487. The reversal of 40156054440480 is 8404445065104.

40156054440480 is a `hidden beast` number, since 4 + 0 + 1 + 5 + 60 + 544 + 4 + 0 + 48 + 0 = 666.

It is a super-2 number, since 2×401560544404802 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (40156054440487) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 21577674750 + ... + 21577676610.

It is an arithmetic number, because the mean of its divisors is an integer number (138469527378).

Almost surely, 240156054440480 is an apocalyptic number.

40156054440480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40156054440480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79758447769728).

40156054440480 is an abundant number, since it is smaller than the sum of its proper divisors (119360841098976).

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

40156054440480 is a wasteful number, since it uses less digits than its factorization.

40156054440480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490 (or 2479 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 45.

The spelling of 40156054440480 in words is "forty trillion, one hundred fifty-six billion, fifty-four million, four hundred forty thousand, four hundred eighty".