Search a number
213709608 = 23327424027
BaseRepresentation
bin11001011110011…
…11001100101000
3112220010120110200
430233033030220
5414202201413
633112312200
75203334040
oct1457171450
9486116420
10213709608
11aa6a7212
125b6a2660
13353774b8
1420550720
1513b66573
hexcbcf328

213709608 has 48 divisors (see below), whose sum is σ = 661483680. Its totient is φ = 61059744.

The previous prime is 213709603. The next prime is 213709609. The reversal of 213709608 is 806907312.

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 (213709603) 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, 211510 + ... + 212517.

It is an arithmetic number, because the mean of its divisors is an integer number (13780910).

Almost surely, 2213709608 is an apocalyptic number.

213709608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213709608 is an abundant number, since it is smaller than the sum of its proper divisors (447774072).

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

213709608 is a wasteful number, since it uses less digits than its factorization.

213709608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424046 (or 424039 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 213709608 is about 14618.8100746949. The cubic root of 213709608 is about 597.8717263448.

The spelling of 213709608 in words is "two hundred thirteen million, seven hundred nine thousand, six hundred eight".