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55857932903 = 17227102114177
BaseRepresentation
bin110100000001011001…
…000110101001100111
312100011211112222212202
4310001121012221213
51403344112323103
641354421205115
74015132411223
oct640131065147
9170154488782
1055857932903
112176438a813
12a9aa86079b
135362586606
1429bc71b783
1516bdcb8988
hexd01646a67

55857932903 has 16 divisors (see below), whose sum is σ = 59466615264. Its totient is φ = 52285624320.

The previous prime is 55857932881. The next prime is 55857932947. The reversal of 55857932903 is 30923975855.

It is not a de Polignac number, because 55857932903 - 212 = 55857928807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55857932003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3932951 + ... + 3947127.

It is an arithmetic number, because the mean of its divisors is an integer number (3716663454).

Almost surely, 255857932903 is an apocalyptic number.

55857932903 is a deficient number, since it is larger than the sum of its proper divisors (3608682361).

55857932903 is a wasteful number, since it uses less digits than its factorization.

55857932903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15442.

The product of its (nonzero) digits is 10206000, while the sum is 56.

The spelling of 55857932903 in words is "fifty-five billion, eight hundred fifty-seven million, nine hundred thirty-two thousand, nine hundred three".

Divisors: 1 17 227 1021 3859 14177 17357 231767 241009 3218179 3940039 14474717 54709043 246070189 3285760759 55857932903