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75057100000 = 2555750571
BaseRepresentation
bin100010111100111000…
…0000111010011100000
321011201212011201220121
41011321300013103200
52212204104200000
654251502050024
75264661552301
oct1057160072340
9234655151817
1075057100000
112991685a163
1212668579914
13710207920c
1438c04dc7a8
151e44595b1a
hex1179c074e0

75057100000 has 72 divisors (see below), whose sum is σ = 184699256616. Its totient is φ = 30022800000.

The previous prime is 75057099989. The next prime is 75057100003. The reversal of 75057100000 is 175057.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75057100003) 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, 275286 + ... + 475285.

It is an arithmetic number, because the mean of its divisors is an integer number (2565267453).

Almost surely, 275057100000 is an apocalyptic number.

It is an amenable number.

75057100000 is an abundant number, since it is smaller than the sum of its proper divisors (109642156616).

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

75057100000 is an frugal number, since it uses more digits than its factorization.

75057100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750606 (or 750578 counting only the distinct ones).

The product of its (nonzero) digits is 1225, while the sum is 25.

Adding to 75057100000 its reverse (175057), we get a palindrome (75057275057).

The spelling of 75057100000 in words is "seventy-five billion, fifty-seven million, one hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 3125 4000 5000 6250 10000 12500 20000 25000 50000 100000 750571 1501142 3002284 3752855 6004568 7505710 12009136 15011420 18764275 24018272 30022840 37528550 60045680 75057100 93821375 120091360 150114200 187642750 300228400 375285500 469106875 600456800 750571000 938213750 1501142000 1876427500 2345534375 3002284000 3752855000 4691068750 7505710000 9382137500 15011420000 18764275000 37528550000 75057100000