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312680900 = 225272973211
BaseRepresentation
bin10010101000110…
…010000111000100
3210210100211120002
4102220302013010
51120021242100
651005500432
710514513060
oct2250620704
9723324502
10312680900
11150555874
1288871718
134ca1a9ac
142d754aa0
151c6b62d5
hex12a321c4

312680900 has 144 divisors (see below), whose sum is σ = 817031040. Its totient is φ = 101606400.

The previous prime is 312680899. The next prime is 312680933. The reversal of 312680900 is 9086213.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1481795 + ... + 1482005.

Almost surely, 2312680900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312680900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408515520).

312680900 is an abundant number, since it is smaller than the sum of its proper divisors (504350140).

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

312680900 is a wasteful number, since it uses less digits than its factorization.

312680900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 312680900 is about 17682.7854140687. The cubic root of 312680900 is about 678.7353223958.

The spelling of 312680900 in words is "three hundred twelve million, six hundred eighty thousand, nine hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 29 35 50 58 70 73 100 116 140 145 146 175 203 211 290 292 350 365 406 422 511 580 700 725 730 812 844 1015 1022 1055 1450 1460 1477 1825 2030 2044 2110 2117 2555 2900 2954 3650 4060 4220 4234 5075 5110 5275 5908 6119 7300 7385 8468 10150 10220 10550 10585 12238 12775 14770 14819 15403 20300 21100 21170 24476 25550 29540 29638 30595 30806 36925 42340 42833 51100 52925 59276 61190 61612 73850 74095 77015 85666 105850 107821 122380 147700 148190 152975 154030 171332 211700 214165 215642 296380 305950 308060 370475 385075 428330 431284 446687 539105 611900 740950 770150 856660 893374 1070825 1078210 1481900 1540300 1786748 2141650 2156420 2233435 2695525 3126809 4283300 4466870 5391050 6253618 8933740 10782100 11167175 12507236 15634045 22334350 31268090 44668700 62536180 78170225 156340450 312680900