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1420202530 = 25239594227
BaseRepresentation
bin101010010100110…
…1001001000100010
310122222100202121201
41110221221020202
510402032440110
6352531511414
750123344105
oct12451511042
93588322551
101420202530
116697381aa
1233775856a
13198303136
14d689073c
1584a35b3a
hex54a69222

1420202530 has 16 divisors (see below), whose sum is σ = 2567064960. Its totient is φ = 565703152.

The previous prime is 1420202527. The next prime is 1420202533. The reversal of 1420202530 is 352020241.

It is an interprime number because it is at equal distance from previous prime (1420202527) and next prime (1420202533).

It is a junction number, because it is equal to n+sod(n) for n = 1420202498 and 1420202507.

It is not an unprimeable number, because it can be changed into a prime (1420202533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294724 + ... + 299503.

It is an arithmetic number, because the mean of its divisors is an integer number (160441560).

Almost surely, 21420202530 is an apocalyptic number.

1420202530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420202530 is a deficient number, since it is larger than the sum of its proper divisors (1146862430).

1420202530 is a wasteful number, since it uses less digits than its factorization.

1420202530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594473.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1420202530 is about 37685.5745610970. The cubic root of 1420202530 is about 1124.0442991326.

Adding to 1420202530 its reverse (352020241), we get a palindrome (1772222771).

The spelling of 1420202530 in words is "one billion, four hundred twenty million, two hundred two thousand, five hundred thirty".

Divisors: 1 2 5 10 239 478 1195 2390 594227 1188454 2971135 5942270 142020253 284040506 710101265 1420202530