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157287285865 = 5314124750163
BaseRepresentation
bin1001001001111100001…
…1011000010001101001
3120000222121202222210001
42102133003120101221
510034111021121430
6200131244223001
714235503604433
oct2223703302151
9500877688701
10157287285865
1160783632956
122659723aa61
1311aa8251128
147881531653
1541587453ca
hex249f0d8469

157287285865 has 16 divisors (see below), whose sum is σ = 199585322496. Its totient is φ = 118800777600.

The previous prime is 157287285839. The next prime is 157287285901. The reversal of 157287285865 is 568582782751.

It is not a de Polignac number, because 157287285865 - 211 = 157287283817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157287285797 and 157287285806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12368727 + ... + 12381436.

It is an arithmetic number, because the mean of its divisors is an integer number (12474082656).

Almost surely, 2157287285865 is an apocalyptic number.

It is an amenable number.

157287285865 is a deficient number, since it is larger than the sum of its proper divisors (42298036631).

157287285865 is a wasteful number, since it uses less digits than its factorization.

157287285865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24750240.

The product of its digits is 75264000, while the sum is 64.

The spelling of 157287285865 in words is "one hundred fifty-seven billion, two hundred eighty-seven million, two hundred eighty-five thousand, eight hundred sixty-five".

Divisors: 1 5 31 41 155 205 1271 6355 24750163 123750815 767255053 1014756683 3836275265 5073783415 31457457173 157287285865