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70161352 = 238770169
BaseRepresentation
bin1000010111010…
…01001111001000
311220000120021121
410023221033020
5120430130402
610543445024
71511235022
oct413511710
9156016247
1070161352
1136671298
121b5b6774
13116c70c1
149465012
15625d837
hex42e93c8

70161352 has 8 divisors (see below), whose sum is σ = 131552550. Its totient is φ = 35080672.

The previous prime is 70161349. The next prime is 70161359. The reversal of 70161352 is 25316107.

It can be written as a sum of positive squares in only one way, i.e., 69989956 + 171396 = 8366^2 + 414^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (70161359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4385077 + ... + 4385092.

Almost surely, 270161352 is an apocalyptic number.

It is an amenable number.

70161352 is a deficient number, since it is larger than the sum of its proper divisors (61391198).

70161352 is a wasteful number, since it uses less digits than its factorization.

70161352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770175 (or 8770171 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 70161352 is about 8376.2373414320. The cubic root of 70161352 is about 412.4449430038. Note that the first 3 decimals are identical.

Adding to 70161352 its reverse (25316107), we get a palindrome (95477459).

The spelling of 70161352 in words is "seventy million, one hundred sixty-one thousand, three hundred fifty-two".

Divisors: 1 2 4 8 8770169 17540338 35080676 70161352