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1910420010 = 232541517729
BaseRepresentation
bin111000111011110…
…1011001000101010
311221010210101120200
41301313223020222
512403031420020
6513322533030
765225205432
oct16167531052
94833711520
101910420010
118a0422914
12453967176
13245a41655
14141a1b2c2
15b2aba590
hex71deb22a

1910420010 has 48 divisors (see below), whose sum is σ = 5088250440. Its totient is φ = 497018880.

The previous prime is 1910419991. The next prime is 1910420011. The reversal of 1910420010 is 100240191.

It can be written as a sum of positive squares in 4 ways, for example, as 781258401 + 1129161609 = 27951^2 + 33603^2 .

It is a super-2 number, since 2×19104200102 = 7299409229216800200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1910420011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255175 + ... + 262554.

Almost surely, 21910420010 is an apocalyptic number.

1910420010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1910420010 is an abundant number, since it is smaller than the sum of its proper divisors (3177830430).

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

1910420010 is a wasteful number, since it uses less digits than its factorization.

1910420010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517783 (or 517780 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1910420010 is about 43708.3517190937. The cubic root of 1910420010 is about 1240.8223841375.

The spelling of 1910420010 in words is "one billion, nine hundred ten million, four hundred twenty thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 41 45 82 90 123 205 246 369 410 615 738 1230 1845 3690 517729 1035458 1553187 2588645 3106374 4659561 5177290 7765935 9319122 15531870 21226889 23297805 42453778 46595610 63680667 106134445 127361334 191042001 212268890 318403335 382084002 636806670 955210005 1910420010