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1628970714 = 232771917981
BaseRepresentation
bin110000100011000…
…0001111011011010
311012112012021201200
41201012001323122
511314004030324
6425350255030
755240010520
oct14106017332
94175167650
101628970714
11766569898
12395657476
131cc63a3c7
141164b6310
1598022ec9
hex61181eda

1628970714 has 48 divisors (see below), whose sum is σ = 4039476480. Its totient is φ = 464747040.

The previous prime is 1628970701. The next prime is 1628970727. The reversal of 1628970714 is 4170798261.

It is a happy number.

1628970714 is a `hidden beast` number, since 1 + 628 + 9 + 7 + 0 + 7 + 14 = 666.

It is an interprime number because it is at equal distance from previous prime (1628970701) and next prime (1628970727).

It is a self number, because there is not a number n which added to its sum of digits gives 1628970714.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81604 + ... + 99584.

It is an arithmetic number, because the mean of its divisors is an integer number (84155760).

Almost surely, 21628970714 is an apocalyptic number.

1628970714 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1628970714 is an abundant number, since it is smaller than the sum of its proper divisors (2410505766).

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

1628970714 is a wasteful number, since it uses less digits than its factorization.

1628970714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18715 (or 18712 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1628970714 is about 40360.5093377177. The cubic root of 1628970714 is about 1176.6241523997.

The spelling of 1628970714 in words is "one billion, six hundred twenty-eight million, nine hundred seventy thousand, seven hundred fourteen".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 719 1438 2157 4314 5033 6471 10066 12942 15099 17981 30198 35962 45297 53943 90594 107886 125867 161829 251734 323658 377601 755202 1132803 2265606 12928339 25856678 38785017 77570034 90498373 116355051 180996746 232710102 271495119 542990238 814485357 1628970714