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75208091672 = 2372389356209
BaseRepresentation
bin100011000001011000…
…0000110100000011000
321012010101021220112202
41012002300012200120
52213011232413142
654314454225332
75301504142250
oct1060260064030
9235111256482
1075208091672
112999400946a
12126ab055248
1371274345bc
1438d65a4960
151e5296e032
hex1182c06818

75208091672 has 32 divisors (see below), whose sum is σ = 161169808800. Its totient is φ = 32230116864.

The previous prime is 75208091669. The next prime is 75208091731. The reversal of 75208091672 is 27619080257.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1309904 + ... + 1366112.

It is an arithmetic number, because the mean of its divisors is an integer number (5036556525).

Almost surely, 275208091672 is an apocalyptic number.

It is an amenable number.

75208091672 is an abundant number, since it is smaller than the sum of its proper divisors (85961717128).

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

75208091672 is a wasteful number, since it uses less digits than its factorization.

75208091672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80115 (or 80111 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 75208091672 in words is "seventy-five billion, two hundred eight million, ninety-one thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 23893 47786 56209 95572 112418 167251 191144 224836 334502 393463 449672 669004 786926 1338008 1573852 3147704 1343001637 2686003274 5372006548 9401011459 10744013096 18802022918 37604045836 75208091672