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54002455919 = 123743655987
BaseRepresentation
bin110010010010110011…
…000001010101101111
312011101112010222221222
4302102303001111233
51341044112042134
640450340013555
73621142205306
oct622263012557
9164345128858
1054002455919
11209a1a84465
12a5713912bb
135128041239
14288412343d
151610e52a2e
hexc92cc156f

54002455919 has 4 divisors (see below), whose sum is σ = 54046113144. Its totient is φ = 53958798696.

The previous prime is 54002455907. The next prime is 54002455931. The reversal of 54002455919 is 91955420045.

54002455919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (54002455907) and next prime (54002455931).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54002455919 is a prime.

It is a super-2 number, since 2×540024559192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54002455919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54002455019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21826757 + ... + 21829230.

It is an arithmetic number, because the mean of its divisors is an integer number (13511528286).

Almost surely, 254002455919 is an apocalyptic number.

54002455919 is a deficient number, since it is larger than the sum of its proper divisors (43657225).

54002455919 is a wasteful number, since it uses less digits than its factorization.

54002455919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43657224.

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 54002455919 in words is "fifty-four billion, two million, four hundred fifty-five thousand, nine hundred nineteen".

Divisors: 1 1237 43655987 54002455919