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10222012540 = 2251931867743
BaseRepresentation
bin10011000010100011…
…11000100001111100
3222101101112001002001
421201101320201330
5131413313400130
64410153112044
7511211446555
oct114121704174
928341461061
1010222012540
114376072353
121b933b8624
13c6b9b0c3c
146cd83532c
153ec6146ca
hex26147887c

10222012540 has 48 divisors (see below), whose sum is σ = 23324958720. Its totient is φ = 3748645440.

The previous prime is 10222012439. The next prime is 10222012573. The reversal of 10222012540 is 4521022201.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 422092 + ... + 445651.

It is an arithmetic number, because the mean of its divisors is an integer number (485936640).

Almost surely, 210222012540 is an apocalyptic number.

10222012540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10222012540 is an abundant number, since it is smaller than the sum of its proper divisors (13102946180).

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

10222012540 is a wasteful number, since it uses less digits than its factorization.

10222012540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867802 (or 867800 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 10222012540 its reverse (4521022201), we get a palindrome (14743034741).

The spelling of 10222012540 in words is "ten billion, two hundred twenty-two million, twelve thousand, five hundred forty".

Divisors: 1 2 4 5 10 19 20 31 38 62 76 95 124 155 190 310 380 589 620 1178 2356 2945 5890 11780 867743 1735486 3470972 4338715 8677430 16487117 17354860 26900033 32974234 53800066 65948468 82435585 107600132 134500165 164871170 269000330 329742340 511100627 538000660 1022201254 2044402508 2555503135 5111006270 10222012540