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1102030780 = 2251719315503
BaseRepresentation
bin100000110101111…
…1010011110111100
32211210122222000211
41001223322132330
54224104441110
6301204202204
736211051504
oct10153723674
92753588024
101102030780
11516082044
12269099364
13147412126
14a650aa04
1566b3798a
hex41afa7bc

1102030780 has 96 divisors (see below), whose sum is σ = 2663055360. Its totient is φ = 380298240.

The previous prime is 1102030751. The next prime is 1102030793. The reversal of 1102030780 is 870302011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197509 + ... + 203011.

It is an arithmetic number, because the mean of its divisors is an integer number (27740160).

Almost surely, 21102030780 is an apocalyptic number.

1102030780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1102030780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331527680).

1102030780 is an abundant number, since it is smaller than the sum of its proper divisors (1561024580).

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

1102030780 is a wasteful number, since it uses less digits than its factorization.

1102030780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579 (or 5577 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1102030780 is about 33196.8489468504. The cubic root of 1102030780 is about 1032.9149776006.

Adding to 1102030780 its reverse (870302011), we get a palindrome (1972332791).

The spelling of 1102030780 in words is "one billion, one hundred two million, thirty thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 17 19 20 31 34 38 62 68 76 85 95 124 155 170 190 310 323 340 380 527 589 620 646 1054 1178 1292 1615 2108 2356 2635 2945 3230 5270 5503 5890 6460 10013 10540 11006 11780 20026 22012 27515 40052 50065 55030 93551 100130 104557 110060 170593 187102 200260 209114 341186 374204 418228 467755 522785 682372 852965 935510 1045570 1705930 1777469 1871020 2091140 2900081 3241267 3411860 3554938 5800162 6482534 7109876 8887345 11600324 12965068 14500405 16206335 17774690 29000810 32412670 35549380 55101539 58001620 64825340 110203078 220406156 275507695 551015390 1102030780