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75053407 = 1113247859
BaseRepresentation
bin1000111100100…
…11100101011111
312020020002220211
410132103211133
5123203202112
611240353251
71600641412
oct436234537
9166202824
1075053407
1139402810
1221175827
131271aa00
149d79b79
1568c80a7
hex479395f

75053407 has 24 divisors (see below), whose sum is σ = 90650880. Its totient is φ = 61570080.

The previous prime is 75053399. The next prime is 75053423. The reversal of 75053407 is 70435057.

It is not a de Polignac number, because 75053407 - 23 = 75053399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75053107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86944 + ... + 87802.

It is an arithmetic number, because the mean of its divisors is an integer number (3777120).

Almost surely, 275053407 is an apocalyptic number.

75053407 is a deficient number, since it is larger than the sum of its proper divisors (15597473).

75053407 is a wasteful number, since it uses less digits than its factorization.

75053407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 75053407 is about 8663.3369436955. The cubic root of 75053407 is about 421.8164093630.

The spelling of 75053407 in words is "seventy-five million, fifty-three thousand, four hundred seven".

Divisors: 1 11 13 47 143 169 517 611 859 1859 6721 7943 9449 11167 40373 87373 122837 145171 444103 524849 1596881 5773339 6823037 75053407