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1031424420 = 2235132357493
BaseRepresentation
bin111101011110100…
…100100110100100
32122212210210022110
4331132210212210
54103021040140
6250203001020
734362651165
oct7536444644
92585723273
101031424420
1148a237484
12249509170
131358c0610
149adab76c
156083c380
hex3d7a49a4

1031424420 has 96 divisors (see below), whose sum is σ = 3245421312. Its totient is φ = 242846208.

The previous prime is 1031424409. The next prime is 1031424421. The reversal of 1031424420 is 244241301.

It is not an unprimeable number, because it can be changed into a prime (1031424421) 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, 10807 + ... + 46686.

It is an arithmetic number, because the mean of its divisors is an integer number (33806472).

Almost surely, 21031424420 is an apocalyptic number.

1031424420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031424420 is an abundant number, since it is smaller than the sum of its proper divisors (2213996892).

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

1031424420 is a wasteful number, since it uses less digits than its factorization.

1031424420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57541 (or 57539 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1031424420 is about 32115.7970475590. The cubic root of 1031424420 is about 1010.3669613857.

Adding to 1031424420 its reverse (244241301), we get a palindrome (1275665721).

The spelling of 1031424420 in words is "one billion, thirty-one million, four hundred twenty-four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 23 26 30 39 46 52 60 65 69 78 92 115 130 138 156 195 230 260 276 299 345 390 460 598 690 780 897 1196 1380 1495 1794 2990 3588 4485 5980 8970 17940 57493 114986 172479 229972 287465 344958 574930 689916 747409 862395 1149860 1322339 1494818 1724790 2242227 2644678 2989636 3449580 3737045 3967017 4484454 5289356 6611695 7474090 7934034 8968908 11211135 13223390 14948180 15868068 17190407 19835085 22422270 26446780 34380814 39670170 44844540 51571221 68761628 79340340 85952035 103142442 171904070 206284884 257856105 343808140 515712210 1031424420