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345470771438 = 21329458184047
BaseRepresentation
bin1010000011011111010…
…10011010000011101110
31020000201110012112210222
411001233222122003232
521130011004141223
6422412421331342
733650042051162
oct5015752320356
91200643175728
10345470771438
11123571275951
1256b55566b52
1326768430020
1412a14118ca2
158ebe5e00c8
hex506fa9a0ee

345470771438 has 16 divisors (see below), whose sum is σ = 577311900480. Its totient is φ = 153949839456.

The previous prime is 345470771389. The next prime is 345470771447. The reversal of 345470771438 is 834177074543.

It is a self number, because there is not a number n which added to its sum of digits gives 345470771438.

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, 229091270 + ... + 229092777.

It is an arithmetic number, because the mean of its divisors is an integer number (36081993780).

Almost surely, 2345470771438 is an apocalyptic number.

345470771438 is a deficient number, since it is larger than the sum of its proper divisors (231841129042).

345470771438 is a wasteful number, since it uses less digits than its factorization.

345470771438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458184091.

The product of its (nonzero) digits is 7902720, while the sum is 53.

The spelling of 345470771438 in words is "three hundred forty-five billion, four hundred seventy million, seven hundred seventy-one thousand, four hundred thirty-eight".

Divisors: 1 2 13 26 29 58 377 754 458184047 916368094 5956392611 11912785222 13287337363 26574674726 172735385719 345470771438