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8618641442 = 24309320721
BaseRepresentation
bin10000000011011011…
…00000100000100010
3211020122111100102022
420001231200200202
5120122333011232
63543115221442
7423402146345
oct100155404042
924218440368
108618641442
113722aa8974
121806447882
13a74767948
145ba90445c
1535699b812
hex201b60822

8618641442 has 4 divisors (see below), whose sum is σ = 12927962166. Its totient is φ = 4309320720.

The previous prime is 8618641441. The next prime is 8618641459. The reversal of 8618641442 is 2441468168.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8504343961 + 114297481 = 92219^2 + 10691^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8618641393 and 8618641402.

It is not an unprimeable number, because it can be changed into a prime (8618641441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2154660359 + ... + 2154660362.

Almost surely, 28618641442 is an apocalyptic number.

8618641442 is a deficient number, since it is larger than the sum of its proper divisors (4309320724).

8618641442 is a wasteful number, since it uses less digits than its factorization.

8618641442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309320723.

The product of its digits is 294912, while the sum is 44.

The square root of 8618641442 is about 92836.6384677946. The cubic root of 8618641442 is about 2050.2788787366.

The spelling of 8618641442 in words is "eight billion, six hundred eighteen million, six hundred forty-one thousand, four hundred forty-two".

Divisors: 1 2 4309320721 8618641442