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312802434 = 232719193677
BaseRepresentation
bin10010101001001…
…111110010000010
3210210121000021100
4102221033302002
51120034134214
651012235230
710515530310
oct2251176202
9723530240
10312802434
1115062910a
128890bb16
134ca610c9
142d7870b0
151c6dc309
hex12a4fc82

312802434 has 96 divisors (see below), whose sum is σ = 820759680. Its totient is φ = 84105216.

The previous prime is 312802417. The next prime is 312802481. The reversal of 312802434 is 434208213.

It is a junction number, because it is equal to n+sod(n) for n = 312802398 and 312802407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 461704 + ... + 462380.

It is an arithmetic number, because the mean of its divisors is an integer number (8549580).

Almost surely, 2312802434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312802434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410379840).

312802434 is an abundant number, since it is smaller than the sum of its proper divisors (507957246).

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

312802434 is a wasteful number, since it uses less digits than its factorization.

312802434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 312802434 is about 17686.2215863084. The cubic root of 312802434 is about 678.8232488128.

It can be divided in two parts, 312802 and 434, that added together give a triangular number (313236 = T791).

The spelling of 312802434 in words is "three hundred twelve million, eight hundred two thousand, four hundred thirty-four".

Divisors: 1 2 3 6 7 9 14 18 19 21 38 42 57 63 114 126 133 171 193 266 342 386 399 579 677 798 1158 1197 1351 1354 1737 2031 2394 2702 3474 3667 4053 4062 4739 6093 7334 8106 9478 11001 12159 12186 12863 14217 22002 24318 25669 25726 28434 33003 38589 42651 51338 66006 77007 77178 85302 90041 115767 130661 154014 180082 231021 231534 261322 270123 391983 462042 540246 783966 810369 914627 1175949 1620738 1829254 2351898 2482559 2743881 4965118 5487762 7447677 8231643 14895354 16463286 17377913 22343031 34755826 44686062 52133739 104267478 156401217 312802434