Search a number
-
+
72570253 = 719545641
BaseRepresentation
bin1000101001101…
…01010110001101
312001112221200011
410110311112031
5122034222003
611111233221
71540560040
oct424652615
9161487604
1072570253
1137a67118
1220378811
131205b6a2
1498d0c57
15658746d
hex453558d

72570253 has 8 divisors (see below), whose sum is σ = 87302720. Its totient is φ = 58929120.

The previous prime is 72570247. The next prime is 72570257. The reversal of 72570253 is 35207527.

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

It is a cyclic number.

It is not a de Polignac number, because 72570253 - 29 = 72569741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72570257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272688 + ... + 272953.

It is an arithmetic number, because the mean of its divisors is an integer number (10912840).

Almost surely, 272570253 is an apocalyptic number.

It is an amenable number.

72570253 is a deficient number, since it is larger than the sum of its proper divisors (14732467).

72570253 is a wasteful number, since it uses less digits than its factorization.

72570253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545667.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 72570253 is about 8518.8175822704. The cubic root of 72570253 is about 417.1121869959.

The spelling of 72570253 in words is "seventy-two million, five hundred seventy thousand, two hundred fifty-three".

Divisors: 1 7 19 133 545641 3819487 10367179 72570253