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55742942202 = 2371208362819
BaseRepresentation
bin110011111010100010…
…011100101111111010
312022212211011212021220
4303322202130233322
51403130143122302
641335152412510
74012235122323
oct637242345772
9168784155256
1055742942202
112170548a582
12a978247136
1353447c478c
1429ab34744a
1516b3b524bc
hexcfa89cbfa

55742942202 has 32 divisors (see below), whose sum is σ = 113112184320. Its totient is φ = 18310190640.

The previous prime is 55742942201. The next prime is 55742942207. The reversal of 55742942202 is 20224924755.

It is not an unprimeable number, because it can be changed into a prime (55742942201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855949 + ... + 918767.

It is an arithmetic number, because the mean of its divisors is an integer number (3534755760).

Almost surely, 255742942202 is an apocalyptic number.

55742942202 is an abundant number, since it is smaller than the sum of its proper divisors (57369242118).

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

55742942202 is a wasteful number, since it uses less digits than its factorization.

55742942202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64978.

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 55742942202 in words is "fifty-five billion, seven hundred forty-two million, nine hundred forty-two thousand, two hundred two".

Divisors: 1 2 3 6 71 142 213 426 2083 4166 6249 12498 62819 125638 147893 188457 295786 376914 443679 887358 4460149 8920298 13380447 26760894 130851977 261703954 392555931 785111862 9290490367 18580980734 27871471101 55742942202