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54570145 = 572367789
BaseRepresentation
bin1101000000101…
…0110010100001
310210200110011111
43100022302201
5102432221040
65225343321
71231560430
oct320126241
9123613144
1054570145
11288923a3
1216337b41
13b3c8636
147367117
154bcddea
hex340aca1

54570145 has 16 divisors (see below), whose sum is σ = 78094080. Its totient is φ = 35792064.

The previous prime is 54570143. The next prime is 54570151. The reversal of 54570145 is 54107545.

It is not a de Polignac number, because 54570145 - 21 = 54570143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54570143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33090 + ... + 34699.

It is an arithmetic number, because the mean of its divisors is an integer number (4880880).

Almost surely, 254570145 is an apocalyptic number.

It is an amenable number.

54570145 is a deficient number, since it is larger than the sum of its proper divisors (23523935).

54570145 is a wasteful number, since it uses less digits than its factorization.

54570145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67824.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 54570145 is about 7387.1608213169. The cubic root of 54570145 is about 379.3019154966.

The spelling of 54570145 in words is "fifty-four million, five hundred seventy thousand, one hundred forty-five".

Divisors: 1 5 7 23 35 115 161 805 67789 338945 474523 1559147 2372615 7795735 10914029 54570145