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254074441940 = 2251131263314149
BaseRepresentation
bin1110110010100000000…
…1000101000011010100
3220021210212212221201022
43230220001011003110
513130321024120230
6312415321020312
724233126060144
oct3545001050324
9807725787638
10254074441940
1198830442840
12412a9024698
131ac61245b97
14c4239c2924
1569208961e5
hex3b280450d4

254074441940 has 96 divisors (see below), whose sum is σ = 601108300800. Its totient is φ = 89370086400.

The previous prime is 254074441927. The next prime is 254074441949. The reversal of 254074441940 is 49144470452.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 254074441891 and 254074441900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254074441949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17949986 + ... + 17964134.

It is an arithmetic number, because the mean of its divisors is an integer number (6261544800).

Almost surely, 2254074441940 is an apocalyptic number.

254074441940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254074441940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300554150400).

254074441940 is an abundant number, since it is smaller than the sum of its proper divisors (347033858860).

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

254074441940 is a wasteful number, since it uses less digits than its factorization.

254074441940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16833 (or 16831 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 254074441940 in words is "two hundred fifty-four billion, seventy-four million, four hundred forty-one thousand, nine hundred forty".

Divisors: 1 2 4 5 10 11 20 22 31 44 55 62 110 124 155 220 310 341 620 682 1364 1705 2633 3410 5266 6820 10532 13165 14149 26330 28298 28963 52660 56596 57926 70745 81623 115852 141490 144815 155639 163246 282980 289630 311278 326492 408115 438619 579260 622556 778195 816230 877238 897853 1556390 1632460 1754476 1795706 2193095 3112780 3591412 4386190 4489265 4824809 8772380 8978530 9649618 17957060 19299236 24124045 37254317 48248090 74508634 96496180 149017268 186271585 372543170 409797487 745086340 819594974 1154883827 1639189948 2048987435 2309767654 4097974870 4619535308 5774419135 8195949740 11548838270 12703722097 23097676540 25407444194 50814888388 63518610485 127037220970 254074441940