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213725030 = 2521372503
BaseRepresentation
bin11001011110100…
…10111101100110
3112220011100121212
430233102331212
5414203200110
633112511422
75203430021
oct1457227546
9486140555
10213725030
11aa707862
125b6ab572
133538151c
14205561b8
1513b6ae05
hexcbd2f66

213725030 has 8 divisors (see below), whose sum is σ = 384705072. Its totient is φ = 85490008.

The previous prime is 213725021. The next prime is 213725089. The reversal of 213725030 is 30527312.

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

It is a junction number, because it is equal to n+sod(n) for n = 213724987 and 213725005.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 10686242 + ... + 10686261.

It is an arithmetic number, because the mean of its divisors is an integer number (48088134).

Almost surely, 2213725030 is an apocalyptic number.

213725030 is a deficient number, since it is larger than the sum of its proper divisors (170980042).

213725030 is a wasteful number, since it uses less digits than its factorization.

213725030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21372510.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 213725030 is about 14619.3375362908. The cubic root of 213725030 is about 597.8861074733.

The spelling of 213725030 in words is "two hundred thirteen million, seven hundred twenty-five thousand, thirty".

Divisors: 1 2 5 10 21372503 42745006 106862515 213725030