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1312000434 = 232431695091
BaseRepresentation
bin100111000110011…
…1000100110110010
310101102202112020200
41032030320212302
510141333003214
6334104420030
744340551103
oct11614704662
93342675220
101312000434
11613654388
12307477616
1317ba7a224
14c63663aa
157a2b0d09
hex4e3389b2

1312000434 has 24 divisors (see below), whose sum is σ = 2908777872. Its totient is φ = 427162680.

The previous prime is 1312000373. The next prime is 1312000447. The reversal of 1312000434 is 4340002131.

1312000434 is a `hidden beast` number, since 1 + 31 + 200 + 0 + 434 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 846772 + ... + 848319.

It is an arithmetic number, because the mean of its divisors is an integer number (121199078).

Almost surely, 21312000434 is an apocalyptic number.

1312000434 is an abundant number, since it is smaller than the sum of its proper divisors (1596777438).

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

1312000434 is a wasteful number, since it uses less digits than its factorization.

1312000434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695142 (or 1695139 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1312000434 is about 36221.5465434595. The cubic root of 1312000434 is about 1094.7408556704.

Adding to 1312000434 its reverse (4340002131), we get a palindrome (5652002565).

The spelling of 1312000434 in words is "one billion, three hundred twelve million, four hundred thirty-four", and thus it is an aban number.

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 1695091 3390182 5085273 10170546 15255819 30511638 72888913 145777826 218666739 437333478 656000217 1312000434