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345161256472 = 2355777459887
BaseRepresentation
bin1010000010111010011…
…01101100111000011000
31012222220212210120002201
411001131031230320120
521123342240201342
6422322003335544
733636263162164
oct5013515547030
91188825716081
10345161256472
1112342259275a
1256a899815b4
1326719280386
14129c4d89ca4
158ea2351db7
hex505d36ce18

345161256472 has 16 divisors (see below), whose sum is σ = 648339262560. Its totient is φ = 172270786464.

The previous prime is 345161256467. The next prime is 345161256481. The reversal of 345161256472 is 274652161543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38725488 + ... + 38734399.

It is an arithmetic number, because the mean of its divisors is an integer number (40521203910).

Almost surely, 2345161256472 is an apocalyptic number.

It is an amenable number.

345161256472 is a deficient number, since it is larger than the sum of its proper divisors (303178006088).

345161256472 is a wasteful number, since it uses less digits than its factorization.

345161256472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77460450 (or 77460446 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 46.

The spelling of 345161256472 in words is "three hundred forty-five billion, one hundred sixty-one million, two hundred fifty-six thousand, four hundred seventy-two".

Divisors: 1 2 4 8 557 1114 2228 4456 77459887 154919774 309839548 619679096 43145157059 86290314118 172580628236 345161256472