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213783087 = 3710180147
BaseRepresentation
bin11001011111000…
…01001000101111
3112220021022021010
430233201020233
5414212024322
633114040303
75204061210
oct1457411057
9486238233
10213783087
11aa747441
125b719093
13353a1a8b
142056d407
1513b7d20c
hexcbe122f

213783087 has 8 divisors (see below), whose sum is σ = 325764736. Its totient is φ = 122161752.

The previous prime is 213783083. The next prime is 213783103. The reversal of 213783087 is 780387312.

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

It is not a de Polignac number, because 213783087 - 22 = 213783083 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 (213783083) 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, 5090053 + ... + 5090094.

It is an arithmetic number, because the mean of its divisors is an integer number (40720592).

Almost surely, 2213783087 is an apocalyptic number.

213783087 is a deficient number, since it is larger than the sum of its proper divisors (111981649).

213783087 is a wasteful number, since it uses less digits than its factorization.

213783087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10180157.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 213783087 is about 14621.3230249523. The cubic root of 213783087 is about 597.9402398494.

The spelling of 213783087 in words is "two hundred thirteen million, seven hundred eighty-three thousand, eighty-seven".

Divisors: 1 3 7 21 10180147 30540441 71261029 213783087