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53693080 = 23571131697
BaseRepresentation
bin1100110011010…
…0101010011000
310202000220001121
43030310222120
5102221134310
65154455024
71221245410
oct314645230
9122026047
1053693080
1128343451
1215b94474
13b17c36c
1471b9640
154aa90da
hex3334a98

53693080 has 64 divisors (see below), whose sum is σ = 139371840. Its totient is φ = 18235392.

The previous prime is 53693071. The next prime is 53693083. The reversal of 53693080 is 8039635.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53693083) 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, 30792 + ... + 32488.

It is an arithmetic number, because the mean of its divisors is an integer number (2177685).

Almost surely, 253693080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53693080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69685920).

53693080 is an abundant number, since it is smaller than the sum of its proper divisors (85678760).

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

53693080 is a wasteful number, since it uses less digits than its factorization.

53693080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 53693080 is about 7327.5562092692. The cubic root of 53693080 is about 377.2588521710.

The spelling of 53693080 in words is "fifty-three million, six hundred ninety-three thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 113 140 226 280 452 565 791 904 1130 1582 1697 2260 3164 3394 3955 4520 6328 6788 7910 8485 11879 13576 15820 16970 23758 31640 33940 47516 59395 67880 95032 118790 191761 237580 383522 475160 767044 958805 1342327 1534088 1917610 2684654 3835220 5369308 6711635 7670440 10738616 13423270 26846540 53693080