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53478488 = 237954973
BaseRepresentation
bin1100110000000…
…0010001011000
310201121222200202
43030000101120
5102142302423
65150121332
71216362650
oct314002130
9121558622
1053478488
11282071a8
1215ab0248
13b10579b
147161360
154a65728
hex3300458

53478488 has 16 divisors (see below), whose sum is σ = 114596880. Its totient is φ = 22919328.

The previous prime is 53478461. The next prime is 53478499. The reversal of 53478488 is 88487435.

It is a super-2 number, since 2×534784882 = 5719897357532288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477431 + ... + 477542.

It is an arithmetic number, because the mean of its divisors is an integer number (7162305).

Almost surely, 253478488 is an apocalyptic number.

It is an amenable number.

53478488 is an abundant number, since it is smaller than the sum of its proper divisors (61118392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53478488 is a wasteful number, since it uses less digits than its factorization.

53478488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954986 (or 954982 counting only the distinct ones).

The product of its digits is 860160, while the sum is 47.

The square root of 53478488 is about 7312.8987412653. The cubic root of 53478488 is about 376.7555916428.

The spelling of 53478488 in words is "fifty-three million, four hundred seventy-eight thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 954973 1909946 3819892 6684811 7639784 13369622 26739244 53478488