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31441052000 = 25537999497
BaseRepresentation
bin11101010010000010…
…000110000101100000
310000011011212221002102
4131102002012011200
51003342402131000
622235510505532
72162065350431
oct352202060540
9100134787072
1031441052000
11123747217a6
1261156652a8
132c70ab81a7
1417439a5488
15c403cc3d5
hex752086160

31441052000 has 96 divisors (see below), whose sum is σ = 78229307520. Its totient is φ = 12417100800.

The previous prime is 31441051997. The next prime is 31441052017. The reversal of 31441052000 is 25014413.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266252 + ... + 365748.

It is an arithmetic number, because the mean of its divisors is an integer number (814888620).

Almost surely, 231441052000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31441052000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39114653760).

31441052000 is an abundant number, since it is smaller than the sum of its proper divisors (46788255520).

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

31441052000 is an equidigital number, since it uses as much as digits as its factorization.

31441052000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99601 (or 99583 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 31441052000 its reverse (25014413), we get a palindrome (31466066413).

The spelling of 31441052000 in words is "thirty-one billion, four hundred forty-one million, fifty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 79 80 100 125 158 160 200 250 316 395 400 500 632 790 800 1000 1264 1580 1975 2000 2528 3160 3950 4000 6320 7900 9875 12640 15800 19750 31600 39500 63200 79000 99497 158000 198994 316000 397988 497485 795976 994970 1591952 1989940 2487425 3183904 3979880 4974850 7860263 7959760 9949700 12437125 15720526 15919520 19899400 24874250 31441052 39301315 39798800 49748500 62882104 78602630 79597600 99497000 125764208 157205260 196506575 198994000 251528416 314410520 393013150 397988000 628821040 786026300 982532875 1257642080 1572052600 1965065750 3144105200 3930131500 6288210400 7860263000 15720526000 31441052000