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193260643438 = 2155516213769
BaseRepresentation
bin1011001111111100111…
…0110110010001101110
3200110211122222220021211
42303333032312101232
511131244211042223
6224441022145034
716651115236102
oct2637716662156
9613748886254
10193260643438
1174a6365a935
123155672217a
13152bc014325
1494d5011902
155061992d0d
hex2cff3b646e

193260643438 has 8 divisors (see below), whose sum is σ = 289909653120. Its totient is φ = 96624092400.

The previous prime is 193260643391. The next prime is 193260643501. The reversal of 193260643438 is 834346062391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 193260643391 and 193260643400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3075783 + ... + 3137986.

It is an arithmetic number, because the mean of its divisors is an integer number (36238706640).

Almost surely, 2193260643438 is an apocalyptic number.

193260643438 is a deficient number, since it is larger than the sum of its proper divisors (96649009682).

193260643438 is a wasteful number, since it uses less digits than its factorization.

193260643438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6229322.

The product of its (nonzero) digits is 2239488, while the sum is 49.

The spelling of 193260643438 in words is "one hundred ninety-three billion, two hundred sixty million, six hundred forty-three thousand, four hundred thirty-eight".

Divisors: 1 2 15551 31102 6213769 12427538 96630321719 193260643438