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1400905030 = 257294714683
BaseRepresentation
bin101001110000000…
…0001110101000110
310121122001100102111
41103200001311012
510332112430110
6351002131234
746500332140
oct12340016506
93548040374
101400905030
11659857758
123311b0b1a
131943076b5
14d40a9c90
1582ec2e8a
hex53801d46

1400905030 has 64 divisors (see below), whose sum is σ = 3044874240. Its totient is φ = 453849984.

The previous prime is 1400905013. The next prime is 1400905031. The reversal of 1400905030 is 305090041.

It is a junction number, because it is equal to n+sod(n) for n = 1400904992 and 1400905010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400905031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88069 + ... + 102751.

It is an arithmetic number, because the mean of its divisors is an integer number (47576160).

Almost surely, 21400905030 is an apocalyptic number.

1400905030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1400905030 is an abundant number, since it is smaller than the sum of its proper divisors (1643969210).

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

1400905030 is a wasteful number, since it uses less digits than its factorization.

1400905030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14773.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1400905030 is about 37428.6658859222. The cubic root of 1400905030 is about 1118.9299489781.

Adding to 1400905030 its reverse (305090041), we get a palindrome (1705995071).

The spelling of 1400905030 in words is "one billion, four hundred million, nine hundred five thousand, thirty".

Divisors: 1 2 5 7 10 14 29 35 47 58 70 94 145 203 235 290 329 406 470 658 1015 1363 1645 2030 2726 3290 6815 9541 13630 14683 19082 29366 47705 73415 95410 102781 146830 205562 425807 513905 690101 851614 1027810 1380202 2129035 2980649 3450505 4258070 4830707 5961298 6901010 9661414 14903245 20012929 24153535 29806490 40025858 48307070 100064645 140090503 200129290 280181006 700452515 1400905030