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7020016420 = 2255321131387
BaseRepresentation
bin1101000100110110…
…01111001100100100
3200010020101210011011
412202123033030210
5103334111011140
63120331152004
7335651104114
oct64233171444
920106353134
107020016420
112a8268626a
12143aba5604
1387b4c3991
144a848b044
152b146ecea
hex1a26cf324

7020016420 has 48 divisors (see below), whose sum is σ = 15091852608. Its totient is φ = 2741880960.

The previous prime is 7020016403. The next prime is 7020016439. The reversal of 7020016420 is 246100207.

It is a super-3 number, since 3×70200164203 (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7020016391 and 7020016400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207967 + ... + 239353.

It is an arithmetic number, because the mean of its divisors is an integer number (314413596).

Almost surely, 27020016420 is an apocalyptic number.

It is an amenable number.

7020016420 is an abundant number, since it is smaller than the sum of its proper divisors (8071836188).

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

7020016420 is a wasteful number, since it uses less digits than its factorization.

7020016420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31660 (or 31658 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 7020016420 is about 83785.5382509416. The cubic root of 7020016420 is about 1914.7527825446.

Adding to 7020016420 its reverse (246100207), we get a palindrome (7266116627).

The spelling of 7020016420 in words is "seven billion, twenty million, sixteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 211 212 265 422 530 844 1055 1060 2110 4220 11183 22366 31387 44732 55915 62774 111830 125548 156935 223660 313870 627740 1663511 3327022 6622657 6654044 8317555 13245314 16635110 26490628 33113285 33270220 66226570 132453140 351000821 702001642 1404003284 1755004105 3510008210 7020016420