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71552253 = 350347417
BaseRepresentation
bin1000100001111…
…00110011111101
311222122020020110
410100330303331
5121304133003
611033340233
71526120103
oct420746375
9158566213
1071552253
11374312a3
121bb67679
1311a93216
149707c73
156435a03
hex443ccfd

71552253 has 8 divisors (see below), whose sum is σ = 95594688. Its totient is φ = 47605664.

The previous prime is 71552237. The next prime is 71552263. The reversal of 71552253 is 35225517.

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 71552253 - 24 = 71552237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71552253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71552213) 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, 22200 + ... + 25217.

It is an arithmetic number, because the mean of its divisors is an integer number (11949336).

Almost surely, 271552253 is an apocalyptic number.

It is an amenable number.

71552253 is a deficient number, since it is larger than the sum of its proper divisors (24042435).

71552253 is a wasteful number, since it uses less digits than its factorization.

71552253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47923.

The product of its digits is 10500, while the sum is 30.

The square root of 71552253 is about 8458.8564830005. The cubic root of 71552253 is about 415.1526085086.

The spelling of 71552253 in words is "seventy-one million, five hundred fifty-two thousand, two hundred fifty-three".

Divisors: 1 3 503 1509 47417 142251 23850751 71552253