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1240055250330 = 2351317419446389
BaseRepresentation
bin10010000010111001000…
…011010111110110011010
311101112210120201122200110
4102002321003113312122
5130304113121002310
62345401251345150
7155406503466351
oct22027103276632
94345716648613
101240055250330
114389a4951566
121803b7bb21b6
138cc23c43370
144403a198998
15223cb487d20
hex120b90d7d9a

1240055250330 has 128 divisors (see below), whose sum is σ = 3401706067200. Its totient is φ = 286602522624.

The previous prime is 1240055250323. The next prime is 1240055250359. The reversal of 1240055250330 is 330525500421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2554776 + ... + 3001164.

It is an arithmetic number, because the mean of its divisors is an integer number (26575828650).

Almost surely, 21240055250330 is an apocalyptic number.

1240055250330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240055250330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1700853033600).

1240055250330 is an abundant number, since it is smaller than the sum of its proper divisors (2161650816870).

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

1240055250330 is a wasteful number, since it uses less digits than its factorization.

1240055250330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446848.

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 1240055250330 in words is "one trillion, two hundred forty billion, fifty-five million, two hundred fifty thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 17 26 30 34 39 51 65 78 85 102 130 170 195 221 255 390 419 442 510 663 838 1105 1257 1326 2095 2210 2514 3315 4190 5447 6285 6630 7123 10894 12570 14246 16341 21369 27235 32682 35615 42738 54470 71230 81705 92599 106845 163410 185198 213690 277797 446389 462995 555594 892778 925990 1339167 1388985 2231945 2678334 2777970 4463890 5803057 6695835 7588613 11606114 13391670 15177226 17409171 22765839 29015285 34818342 37943065 45531678 58030570 75886130 87045855 98651969 113829195 174091710 187036991 197303938 227658390 295955907 374073982 493259845 561110973 591911814 935184955 986519690 1122221946 1479779535 1870369910 2431480883 2805554865 2959559070 3179628847 4862961766 5611109730 6359257694 7294442649 9538886541 12157404415 14588885298 15898144235 19077773082 24314808830 31796288470 36472213245 41335175011 47694432705 72944426490 82670350022 95388865410 124005525033 206675875055 248011050066 413351750110 620027625165 1240055250330