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70143325 = 5272771447
BaseRepresentation
bin1000010111001…
…00110101011101
311212222122112221
410023210311131
5120424041300
610543225341
71511131330
oct413446535
9155878487
1070143325
113665979a
121b5a8251
13116bbb35
14945c617
15625831a
hex42e4d5d

70143325 has 24 divisors (see below), whose sum is σ = 99830912. Its totient is φ = 47891520.

The previous prime is 70143299. The next prime is 70143329. The reversal of 70143325 is 52334107.

It is not a de Polignac number, because 70143325 - 219 = 69619037 is a prime.

It is a super-3 number, since 3×701433253 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70143325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70143329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47752 + ... + 49198.

Almost surely, 270143325 is an apocalyptic number.

It is an amenable number.

70143325 is a deficient number, since it is larger than the sum of its proper divisors (29687587).

70143325 is a wasteful number, since it uses less digits than its factorization.

70143325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1736 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 70143325 is about 8375.1611924786. The cubic root of 70143325 is about 412.4096159486.

The spelling of 70143325 in words is "seventy million, one hundred forty-three thousand, three hundred twenty-five".

Divisors: 1 5 7 25 35 175 277 1385 1447 1939 6925 7235 9695 10129 36175 48475 50645 253225 400819 2004095 2805733 10020475 14028665 70143325