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70228453 = 232132757
BaseRepresentation
bin1000010111110…
…01100111100101
311220010222022211
410023321213211
5120434302303
610545123421
71511634451
oct413714745
9156128284
1070228453
1136707749
121b629571
131171b7c9
149481661
15627366d
hex42f99e5

70228453 has 6 divisors (see below), whose sum is σ = 73415174. Its totient is φ = 67174536.

The previous prime is 70228451. The next prime is 70228463. The reversal of 70228453 is 35482207.

It can be written as a sum of positive squares in only one way, i.e., 37429924 + 32798529 = 6118^2 + 5727^2 .

It is not a de Polignac number, because 70228453 - 21 = 70228451 is a prime.

It is a super-2 number, since 2×702284532 = 9864071221546418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70228451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65850 + ... + 66907.

Almost surely, 270228453 is an apocalyptic number.

It is an amenable number.

70228453 is a deficient number, since it is larger than the sum of its proper divisors (3186721).

70228453 is a wasteful number, since it uses less digits than its factorization.

70228453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132803 (or 132780 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 70228453 is about 8380.2418222865. The cubic root of 70228453 is about 412.5763859766.

The spelling of 70228453 in words is "seventy million, two hundred twenty-eight thousand, four hundred fifty-three".

Divisors: 1 23 529 132757 3053411 70228453