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69445222431 = 3132377419423
BaseRepresentation
bin100000010101101000…
…0100000000000011111
320122020202102211010020
41000223100200000133
52114210434104211
651522552043223
75005626436224
oct1005320400037
9218222384106
1069445222431
11274a7021512
1211561093513
1367195236c0
14350b08194b
151c16a77306
hex102b42001f

69445222431 has 16 divisors (see below), whose sum is σ = 104051705856. Its totient is φ = 40877454816.

The previous prime is 69445222421. The next prime is 69445222459. The reversal of 69445222431 is 13422254496.

It is not a de Polignac number, because 69445222431 - 215 = 69445189663 is a prime.

It is a super-2 number, since 2×694452224312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69445222421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38708815 + ... + 38710608.

It is an arithmetic number, because the mean of its divisors is an integer number (6503231616).

Almost surely, 269445222431 is an apocalyptic number.

69445222431 is a deficient number, since it is larger than the sum of its proper divisors (34606483425).

69445222431 is a wasteful number, since it uses less digits than its factorization.

69445222431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77419462.

The product of its digits is 414720, while the sum is 42.

The spelling of 69445222431 in words is "sixty-nine billion, four hundred forty-five million, two hundred twenty-two thousand, four hundred thirty-one".

Divisors: 1 3 13 23 39 69 299 897 77419423 232258269 1006452499 1780646729 3019357497 5341940187 23148407477 69445222431