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10215041440 = 255193360211
BaseRepresentation
bin10011000001101110…
…10010100110100000
3222100220101212112011
421200313102212200
5131410022311230
64405343442304
7511065263632
oct114067224640
928326355464
1010215041440
11437214090a
121b90bb6394
13c6a40cc26
146cc93ca52
153ebbd8e2a
hex260dd29a0

10215041440 has 48 divisors (see below), whose sum is σ = 25403202720. Its totient is φ = 3870961920.

The previous prime is 10215041423. The next prime is 10215041453. The reversal of 10215041440 is 4414051201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1677066 + ... + 1683145.

It is an arithmetic number, because the mean of its divisors is an integer number (529233390).

Almost surely, 210215041440 is an apocalyptic number.

10215041440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10215041440 is an abundant number, since it is smaller than the sum of its proper divisors (15188161280).

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

10215041440 is a wasteful number, since it uses less digits than its factorization.

10215041440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360245 (or 3360237 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 10215041440 its reverse (4414051201), we get a palindrome (14629092641).

The spelling of 10215041440 in words is "ten billion, two hundred fifteen million, forty-one thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 190 304 380 608 760 1520 3040 3360211 6720422 13440844 16801055 26881688 33602110 53763376 63844009 67204220 107526752 127688018 134408440 255376036 268816880 319220045 510752072 537633760 638440090 1021504144 1276880180 2043008288 2553760360 5107520720 10215041440