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75478996 = 22295312277
BaseRepresentation
bin1000111111110…
…11011111010100
312021000201201101
410133323133110
5123310311441
611253435444
71604363245
oct437733724
9167021641
1075478996
113967353a
122133bb84
1312839638
14a04accc
15695e231
hex47fb7d4

75478996 has 24 divisors (see below), whose sum is σ = 139232520. Its totient is φ = 35747712.

The previous prime is 75478993. The next prime is 75478999. The reversal of 75478996 is 69987457.

It is an interprime number because it is at equal distance from previous prime (75478993) and next prime (75478999).

It can be written as a sum of positive squares in 4 ways, for example, as 5522500 + 69956496 = 2350^2 + 8364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75478993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10 + ... + 12286.

It is an arithmetic number, because the mean of its divisors is an integer number (5801355).

Almost surely, 275478996 is an apocalyptic number.

It is an amenable number.

75478996 is a deficient number, since it is larger than the sum of its proper divisors (63753524).

75478996 is a wasteful number, since it uses less digits than its factorization.

75478996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12363 (or 12361 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 55.

The square root of 75478996 is about 8687.8648700357. The cubic root of 75478996 is about 422.6122078639.

The spelling of 75478996 in words is "seventy-five million, four hundred seventy-eight thousand, nine hundred ninety-six".

Divisors: 1 2 4 29 53 58 106 116 212 1537 3074 6148 12277 24554 49108 356033 650681 712066 1301362 1424132 2602724 18869749 37739498 75478996