Search a number
-
+
1430428698 = 23279468261
BaseRepresentation
bin101010101000010…
…1001110000011010
310200200121022021200
41111100221300122
510412142204243
6353535015030
750306305026
oct12520516032
93620538250
101430428698
11674492286
1233b06a476
1319a47391a
14d7d93386
15858a5ad3
hex55429c1a

1430428698 has 12 divisors (see below), whose sum is σ = 3099262218. Its totient is φ = 476809560.

The previous prime is 1430428687. The next prime is 1430428721. The reversal of 1430428698 is 8968240341.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1429066809 + 1361889 = 37803^2 + 1167^2 .

It is a super-2 number, since 2×14304286982 = 4092252520123950408, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 39734113 + ... + 39734148.

Almost surely, 21430428698 is an apocalyptic number.

1430428698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1430428698 is an abundant number, since it is smaller than the sum of its proper divisors (1668833520).

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

1430428698 is a wasteful number, since it uses less digits than its factorization.

1430428698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79468269 (or 79468266 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 1430428698 is about 37821.0086856498. The cubic root of 1430428698 is about 1126.7357430931.

It can be divided in two parts, 1430 and 428698, that added together give a triangular number (430128 = T927).

The spelling of 1430428698 in words is "one billion, four hundred thirty million, four hundred twenty-eight thousand, six hundred ninety-eight".

Divisors: 1 2 3 6 9 18 79468261 158936522 238404783 476809566 715214349 1430428698