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38349334840 = 23510926893271
BaseRepresentation
bin100011101101110011…
…000110100100111000
310122222122001001120211
4203231303012210320
51112014412203330
625341211200504
72525221652635
oct435563064470
9118878031524
1038349334840
111529a221963
127523146134
1338020ba70b
141bdb28918c
15ee6b2ad2a
hex8edcc6938

38349334840 has 64 divisors (see below), whose sum is σ = 87136632000. Its totient is φ = 15188705280.

The previous prime is 38349334801. The next prime is 38349334841. The reversal of 38349334840 is 4843394383.

It is a happy number.

38349334840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38349334841) 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, 11722405 + ... + 11725675.

It is an arithmetic number, because the mean of its divisors is an integer number (1361509875).

Almost surely, 238349334840 is an apocalyptic number.

It is an amenable number.

38349334840 is an abundant number, since it is smaller than the sum of its proper divisors (48787297160).

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

38349334840 is a wasteful number, since it uses less digits than its factorization.

38349334840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080 (or 6076 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 49.

The spelling of 38349334840 in words is "thirty-eight billion, three hundred forty-nine million, three hundred thirty-four thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 109 218 436 545 872 1090 2180 2689 3271 4360 5378 6542 10756 13084 13445 16355 21512 26168 26890 32710 53780 65420 107560 130840 293101 356539 586202 713078 1172404 1426156 1465505 1782695 2344808 2852312 2931010 3565390 5862020 7130780 8795719 11724040 14261560 17591438 35182876 43978595 70365752 87957190 175914380 351828760 958733371 1917466742 3834933484 4793666855 7669866968 9587333710 19174667420 38349334840