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1400420215 = 5377569839
BaseRepresentation
bin101001101111000…
…1011011101110111
310121121010201101101
41103132023131313
510332001421330
6350543510531
746463242525
oct12336133567
93547121341
101400420215
11659556487
12330bb8447
13194197b1c
14d3dc1315
1582e294ca
hex5378b777

1400420215 has 8 divisors (see below), whose sum is σ = 1725923520. Its totient is φ = 1090056672.

The previous prime is 1400420167. The next prime is 1400420227. The reversal of 1400420215 is 5120240041.

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

It is a cyclic number.

It is not a de Polignac number, because 1400420215 - 211 = 1400418167 is a prime.

It is a super-2 number, since 2×14004202152 = 3922353557161292450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1400420192 and 1400420201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3784735 + ... + 3785104.

It is an arithmetic number, because the mean of its divisors is an integer number (215740440).

Almost surely, 21400420215 is an apocalyptic number.

1400420215 is a deficient number, since it is larger than the sum of its proper divisors (325503305).

1400420215 is an equidigital number, since it uses as much as digits as its factorization.

1400420215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7569881.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1400420215 is about 37422.1888055736. The cubic root of 1400420215 is about 1118.8008570453.

Adding to 1400420215 its reverse (5120240041), we get a palindrome (6520660256).

The spelling of 1400420215 in words is "one billion, four hundred million, four hundred twenty thousand, two hundred fifteen".

Divisors: 1 5 37 185 7569839 37849195 280084043 1400420215