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55252500280 = 2353134413139
BaseRepresentation
bin110011011101010011…
…100011111100111000
312021121122022211110021
4303131103203330320
51401124120002110
641214352500224
73664131334435
oct633523437470
9167548284407
1055252500280
112148366127a
12a85bb4a674
135297008063
14296215cb8c
151685a762da
hexcdd4e3f38

55252500280 has 32 divisors (see below), whose sum is σ = 124715336400. Its totient is φ = 22030384896.

The previous prime is 55252500271. The next prime is 55252500293. The reversal of 55252500280 is 8200525255.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2194050 + ... + 2219089.

Almost surely, 255252500280 is an apocalyptic number.

It is an amenable number.

55252500280 is an abundant number, since it is smaller than the sum of its proper divisors (69462836120).

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

55252500280 is a wasteful number, since it uses less digits than its factorization.

55252500280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413463 (or 4413459 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 55252500280 in words is "fifty-five billion, two hundred fifty-two million, five hundred thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 313 626 1252 1565 2504 3130 6260 12520 4413139 8826278 17652556 22065695 35305112 44131390 88262780 176525560 1381312507 2762625014 5525250028 6906562535 11050500056 13813125070 27626250140 55252500280