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69952778052 = 22312745900773
BaseRepresentation
bin100000100100110000…
…0101010111101000100
320200120010111022112120
41001021200222331010
52121230402344202
652045202445540
75024331542223
oct1011140527504
9220503438476
1069952778052
1127737579573
12116830638b0
13679a722881
143558642cba
151c463d40bc
hex104982af44

69952778052 has 24 divisors (see below), whose sum is σ = 164508374016. Its totient is φ = 23133989088.

The previous prime is 69952778041. The next prime is 69952778053. The reversal of 69952778052 is 25087725996.

It is not an unprimeable number, because it can be changed into a prime (69952778053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22948863 + ... + 22951910.

It is an arithmetic number, because the mean of its divisors is an integer number (6854515584).

Almost surely, 269952778052 is an apocalyptic number.

It is an amenable number.

69952778052 is an abundant number, since it is smaller than the sum of its proper divisors (94555595964).

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

69952778052 is a wasteful number, since it uses less digits than its factorization.

69952778052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45900907 (or 45900905 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 60.

The spelling of 69952778052 in words is "sixty-nine billion, nine hundred fifty-two million, seven hundred seventy-eight thousand, fifty-two".

Divisors: 1 2 3 4 6 12 127 254 381 508 762 1524 45900773 91801546 137702319 183603092 275404638 550809276 5829398171 11658796342 17488194513 23317592684 34976389026 69952778052