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1427310390 = 2351123918097
BaseRepresentation
bin101010100010011…
…0000011100110110
310200110201212202210
41111010300130312
510410342413030
6353344114250
750240636532
oct12504603466
93613655683
101427310390
11672752470
1233a005986
1319992147c
14d77c0bc2
158548bbb0
hex55130736

1427310390 has 64 divisors (see below), whose sum is σ = 3752801280. Its totient is φ = 344547840.

The previous prime is 1427310383. The next prime is 1427310403. The reversal of 1427310390 is 930137241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69822 + ... + 87918.

It is an arithmetic number, because the mean of its divisors is an integer number (58637520).

Almost surely, 21427310390 is an apocalyptic number.

1427310390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427310390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1876400640).

1427310390 is an abundant number, since it is smaller than the sum of its proper divisors (2325490890).

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

1427310390 is a wasteful number, since it uses less digits than its factorization.

1427310390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18357.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1427310390 is about 37779.7616456219. The cubic root of 1427310390 is about 1125.9163930826.

The spelling of 1427310390 in words is "one billion, four hundred twenty-seven million, three hundred ten thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 239 330 478 717 1195 1434 2390 2629 3585 5258 7170 7887 13145 15774 18097 26290 36194 39435 54291 78870 90485 108582 180970 199067 271455 398134 542910 597201 995335 1194402 1990670 2986005 4325183 5972010 8650366 12975549 21625915 25951098 43251830 47577013 64877745 95154026 129755490 142731039 237885065 285462078 475770130 713655195 1427310390