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53988145 = 518235923
BaseRepresentation
bin1100110111110…
…0101100110001
310202120212210221
43031330230301
5102310110040
65205053041
71223614561
oct315745461
9122525727
1053988145
1128525102
12160b7181
13b253763
147254da1
154b1674a
hex337cb31

53988145 has 8 divisors (see below), whose sum is σ = 64832256. Its totient is φ = 43159536.

The previous prime is 53988133. The next prime is 53988157. The reversal of 53988145 is 54188935.

It is an interprime number because it is at equal distance from previous prime (53988133) and next prime (53988157).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53988145 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6154 + ... + 12076.

It is an arithmetic number, because the mean of its divisors is an integer number (8104032).

Almost surely, 253988145 is an apocalyptic number.

It is an amenable number.

53988145 is a deficient number, since it is larger than the sum of its proper divisors (10844111).

53988145 is a wasteful number, since it uses less digits than its factorization.

53988145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7751.

The product of its digits is 172800, while the sum is 43.

The square root of 53988145 is about 7347.6625534928. The cubic root of 53988145 is about 377.9486530107.

The spelling of 53988145 in words is "fifty-three million, nine hundred eighty-eight thousand, one hundred forty-five".

Divisors: 1 5 1823 5923 9115 29615 10797629 53988145