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1420429970 = 25142042997
BaseRepresentation
bin101010010101010…
…0000101010010010
310122222210022121102
41110222200222102
510402112224340
6352540424402
750125312151
oct12452405222
93588708542
101420429970
11669883073
12337848102
1319838280b
14d690d598
1584a7d215
hex54aa0a92

1420429970 has 8 divisors (see below), whose sum is σ = 2556773964. Its totient is φ = 568171984.

The previous prime is 1420429939. The next prime is 1420429981. The reversal of 1420429970 is 799240241.

It can be written as a sum of positive squares in 2 ways, for example, as 1398236449 + 22193521 = 37393^2 + 4711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71021489 + ... + 71021508.

Almost surely, 21420429970 is an apocalyptic number.

1420429970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420429970 is a deficient number, since it is larger than the sum of its proper divisors (1136343994).

1420429970 is a wasteful number, since it uses less digits than its factorization.

1420429970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142043004.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1420429970 is about 37688.5920405631. The cubic root of 1420429970 is about 1124.1042997273.

The spelling of 1420429970 in words is "one billion, four hundred twenty million, four hundred twenty-nine thousand, nine hundred seventy".

Divisors: 1 2 5 10 142042997 284085994 710214985 1420429970