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351938672252 = 222231861721193
BaseRepresentation
bin1010001111100010010…
…11011111011001111100
31020122102012200221201222
411013301023133121330
521231232300003002
6425402311052512
734266240232646
oct5076113373174
91218365627658
10351938672252
11126290229522
125825b671138
132725942257b
1413069125896
15924c3501a2
hex51f12df67c

351938672252 has 24 divisors (see below), whose sum is σ = 618716950656. Its totient is φ = 175162560768.

The previous prime is 351938672251. The next prime is 351938672287. The reversal of 351938672252 is 252276839153.

It is a junction number, because it is equal to n+sod(n) for n = 351938672194 and 351938672203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351938672251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16595768 + ... + 16616960.

It is an arithmetic number, because the mean of its divisors is an integer number (25779872944).

Almost surely, 2351938672252 is an apocalyptic number.

It is an amenable number.

351938672252 is a deficient number, since it is larger than the sum of its proper divisors (266778278404).

351938672252 is a wasteful number, since it uses less digits than its factorization.

351938672252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40037 (or 40035 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 53.

The spelling of 351938672252 in words is "three hundred fifty-one billion, nine hundred thirty-eight million, six hundred seventy-two thousand, two hundred fifty-two".

Divisors: 1 2 4 223 446 892 18617 21193 37234 42386 74468 84772 4151591 4726039 8303182 9452078 16606364 18904156 394550081 789100162 1578200324 87984668063 175969336126 351938672252