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319045632 = 21436491
BaseRepresentation
bin10011000001000…
…100000000000000
3211020100012022220
4103001010000000
51123133430012
651354131040
710622562123
oct2301040000
9736305286
10319045632
11154102784
128aa20a80
13511389c9
14305303ba
151d02208c
hex13044000

319045632 has 60 divisors (see below), whose sum is σ = 850893456. Its totient is φ = 106332160.

The previous prime is 319045621. The next prime is 319045633. The reversal of 319045632 is 236540913.

It is a junction number, because it is equal to n+sod(n) for n = 319045593 and 319045602.

It is not an unprimeable number, because it can be changed into a prime (319045633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45907 + ... + 52397.

Almost surely, 2319045632 is an apocalyptic number.

319045632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 319045632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425446728).

319045632 is an abundant number, since it is smaller than the sum of its proper divisors (531847824).

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

319045632 is an frugal number, since it uses more digits than its factorization.

319045632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6522 (or 6496 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 319045632 is about 17861.8485045641. The cubic root of 319045632 is about 683.3097239249.

The spelling of 319045632 in words is "three hundred nineteen million, forty-five thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 768 1024 1536 2048 3072 4096 6144 6491 8192 12288 12982 16384 19473 24576 25964 38946 49152 51928 77892 103856 155784 207712 311568 415424 623136 830848 1246272 1661696 2492544 3323392 4985088 6646784 9970176 13293568 19940352 26587136 39880704 53174272 79761408 106348544 159522816 319045632