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88420640064824 = 23211104949935077
BaseRepresentation
bin10100000110101100001000…
…110101111000010100111000
3102121001221010102201201121102
4110012230020311320110320
543042140432324033244
6512015514205030532
724424115613521654
oct2406541065702470
9377057112651542
1088420640064824
112619aa8a216991
129b00619555448
133a45052255102
1417b98206d3a64
15a350552e754e
hex506b08d78538

88420640064824 has 32 divisors (see below), whose sum is σ = 166733225442000. Its totient is φ = 43958846104320.

The previous prime is 88420640064787. The next prime is 88420640064829. The reversal of 88420640064824 is 42846004602488.

It is a self number, because there is not a number n which added to its sum of digits gives 88420640064824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88420640064829) 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, 23196827 + ... + 26738250.

Almost surely, 288420640064824 is an apocalyptic number.

It is an amenable number.

88420640064824 is a deficient number, since it is larger than the sum of its proper divisors (78312585377176).

88420640064824 is a wasteful number, since it uses less digits than its factorization.

88420640064824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49936343 (or 49936339 counting only the distinct ones).

The product of its (nonzero) digits is 18874368, while the sum is 56.

The spelling of 88420640064824 in words is "eighty-eight trillion, four hundred twenty billion, six hundred forty million, sixty-four thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 211 422 844 1049 1688 2098 4196 8392 221339 442678 885356 1770712 49935077 99870154 199740308 399480616 10536301247 21072602494 42145204988 52381895773 84290409976 104763791546 209527583092 419055166184 11052580008103 22105160016206 44210320032412 88420640064824