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38944953580 = 22513997150239
BaseRepresentation
bin100100010001010011…
…001101010011101100
310201112010210121220011
4210101103031103230
51114224402003310
625520245303004
72546043433501
oct442123152354
9121463717804
1038944953580
1115575458055
12766a704a64
133898611040
141c564114a8
15102e08078a
hex9114cd4ec

38944953580 has 48 divisors (see below), whose sum is σ = 88164437760. Its totient is φ = 14365156608.

The previous prime is 38944953577. The next prime is 38944953589. The reversal of 38944953580 is 8535944983.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38944953589) 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, 184101 + ... + 334339.

It is an arithmetic number, because the mean of its divisors is an integer number (1836759120).

Almost surely, 238944953580 is an apocalyptic number.

It is an amenable number.

38944953580 is an abundant number, since it is smaller than the sum of its proper divisors (49219484180).

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

38944953580 is a wasteful number, since it uses less digits than its factorization.

38944953580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151258 (or 151256 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 38944953580 in words is "thirty-eight billion, nine hundred forty-four million, nine hundred fifty-three thousand, five hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 997 1994 3988 4985 9970 12961 19940 25922 51844 64805 129610 150239 259220 300478 600956 751195 1502390 1953107 3004780 3906214 7812428 9765535 19531070 39062140 149788283 299576566 599153132 748941415 1497882830 1947247679 2995765660 3894495358 7788990716 9736238395 19472476790 38944953580