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3854051557 = 231213138143
BaseRepresentation
bin1110010110111000…
…0010100011100101
3100221121002002211021
43211232002203211
530343114122212
61434233411141
7164335616626
oct34556024345
910847062737
103854051557
1116a8569a84
128b6869ab1
134956109a5
14287c01a4d
15178546307
hexe5b828e5

3854051557 has 8 divisors (see below), whose sum is σ = 4024963584. Its totient is φ = 3683418288.

The previous prime is 3854051549. The next prime is 3854051567. The reversal of 3854051557 is 7551504583.

It is a happy number.

3854051557 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3854051557 - 23 = 3854051549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3854051527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41173 + ... + 96970.

It is an arithmetic number, because the mean of its divisors is an integer number (503120448).

Almost surely, 23854051557 is an apocalyptic number.

It is an amenable number.

3854051557 is a deficient number, since it is larger than the sum of its proper divisors (170912027).

3854051557 is a wasteful number, since it uses less digits than its factorization.

3854051557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139379.

The product of its (nonzero) digits is 420000, while the sum is 43.

The square root of 3854051557 is about 62081.0080217775. The cubic root of 3854051557 is about 1567.8548003313.

The spelling of 3854051557 in words is "three billion, eight hundred fifty-four million, fifty-one thousand, five hundred fifty-seven".

Divisors: 1 23 1213 27899 138143 3177289 167567459 3854051557