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1207316808 = 233237453197
BaseRepresentation
bin100011111110110…
…0011000101001000
310010010210001022100
41013331203011020
54433033114213
6315444553400
741630011035
oct10775430510
93103701270
101207316808
1156a553a95
122983b2860
13163186959
14b64b638c
1570ed3773
hex47f63148

1207316808 has 48 divisors (see below), whose sum is σ = 3358197180. Its totient is φ = 391561344.

The previous prime is 1207316807. The next prime is 1207316821. The reversal of 1207316808 is 8086137021.

It can be written as a sum of positive squares in 2 ways, for example, as 1191492324 + 15824484 = 34518^2 + 3978^2 .

It is a super-2 number, since 2×12073168082 = 2915227749758617728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1207316807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223935 + ... + 229262.

Almost surely, 21207316808 is an apocalyptic number.

1207316808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1207316808 is an abundant number, since it is smaller than the sum of its proper divisors (2150880372).

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

1207316808 is a wasteful number, since it uses less digits than its factorization.

1207316808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453246 (or 453239 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1207316808 is about 34746.4646834754. The cubic root of 1207316808 is about 1064.8139911869.

The spelling of 1207316808 in words is "one billion, two hundred seven million, three hundred sixteen thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 37 72 74 111 148 222 296 333 444 666 888 1332 2664 453197 906394 1359591 1812788 2719182 3625576 4078773 5438364 8157546 10876728 16315092 16768289 32630184 33536578 50304867 67073156 100609734 134146312 150914601 201219468 301829202 402438936 603658404 1207316808