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8978722342 = 238839115589
BaseRepresentation
bin10000101110010110…
…00110111000100110
3212011202001100112221
420113023012320212
5121342023103332
64042541102554
7435333611032
oct102713067046
925152040487
108978722342
113898288a97
1218a6b57a5a
13b01240475
146126771c2
153783c7297
hex2172c6e26

8978722342 has 8 divisors (see below), whose sum is σ = 13468546800. Its totient is φ = 4489206744.

The previous prime is 8978722331. The next prime is 8978722343. The reversal of 8978722342 is 2432278798.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8978722342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8978722343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19884 + ... + 135472.

It is an arithmetic number, because the mean of its divisors is an integer number (1683568350).

Almost surely, 28978722342 is an apocalyptic number.

8978722342 is a deficient number, since it is larger than the sum of its proper divisors (4489824458).

8978722342 is a wasteful number, since it uses less digits than its factorization.

8978722342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154430.

The product of its digits is 2709504, while the sum is 52.

The square root of 8978722342 is about 94756.1203405880. The cubic root of 8978722342 is about 2078.4432957505.

The spelling of 8978722342 in words is "eight billion, nine hundred seventy-eight million, seven hundred twenty-two thousand, three hundred forty-two".

Divisors: 1 2 38839 77678 115589 231178 4489361171 8978722342