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54354040452 = 22321509834457
BaseRepresentation
bin110010100111110000…
…001101011010000100
312012022000201100021100
4302213300031122010
51342304113243302
640545255420100
73632641502145
oct624760153204
9165260640240
1054354040452
1121062491098
12a64b084630
135182b3071a
1428b8ac3acc
151631c50d1c
hexca7c0d684

54354040452 has 18 divisors (see below), whose sum is σ = 137394935678. Its totient is φ = 18118013472.

The previous prime is 54354040441. The next prime is 54354040463. The reversal of 54354040452 is 25404045345.

It is an interprime number because it is at equal distance from previous prime (54354040441) and next prime (54354040463).

It can be written as a sum of positive squares in only one way, i.e., 54318828096 + 35212356 = 233064^2 + 5934^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1509834457 = 54354040452 / (5 + 4 + 3 + 5 + 4 + 0 + 4 + 0 + 4 + 5 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 754917193 + ... + 754917264.

Almost surely, 254354040452 is an apocalyptic number.

It is an amenable number.

54354040452 is an abundant number, since it is smaller than the sum of its proper divisors (83040895226).

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

54354040452 is a wasteful number, since it uses less digits than its factorization.

54354040452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509834467 (or 1509834462 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 54354040452 its reverse (25404045345), we get a palindrome (79758085797).

The spelling of 54354040452 in words is "fifty-four billion, three hundred fifty-four million, forty thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 1509834457 3019668914 4529503371 6039337828 9059006742 13588510113 18118013484 27177020226 54354040452