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75740274 = 2327357641
BaseRepresentation
bin1001000001110…
…11010001110010
312021112000010100
410200323101302
5123342142044
611303213230
71606532061
oct440732162
9167460110
1075740274
1139831875
1221447216
13128cb53c
14a0b81d8
1569b1869
hex483b472

75740274 has 24 divisors (see below), whose sum is σ = 166354812. Its totient is φ = 24900480.

The previous prime is 75740267. The next prime is 75740279. The reversal of 75740274 is 47204757.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69006249 + 6734025 = 8307^2 + 2595^2 .

It is not an unprimeable number, because it can be changed into a prime (75740279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27507 + ... + 30134.

Almost surely, 275740274 is an apocalyptic number.

75740274 is an abundant number, since it is smaller than the sum of its proper divisors (90614538).

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

75740274 is a wasteful number, since it uses less digits than its factorization.

75740274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57722 (or 57719 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 75740274 is about 8702.8888307274. Note that the first 4 decimals coincide. The cubic root of 75740274 is about 423.0992842413.

The spelling of 75740274 in words is "seventy-five million, seven hundred forty thousand, two hundred seventy-four".

Divisors: 1 2 3 6 9 18 73 146 219 438 657 1314 57641 115282 172923 345846 518769 1037538 4207793 8415586 12623379 25246758 37870137 75740274