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40302023230 = 257371732267
BaseRepresentation
bin100101100010001100…
…000001001000111110
310212000201100220111001
4211202030001020332
51130014304220410
630303044120514
72624502355000
oct454214011076
9125021326431
1040302023230
1116101494617
12798909613a
133a5380b231
141d4474a370
1510ad29533a
hex96230123e

40302023230 has 128 divisors (see below), whose sum is σ = 87004108800. Its totient is φ = 13430672640.

The previous prime is 40302023221. The next prime is 40302023269. The reversal of 40302023230 is 3232020304.

It is a junction number, because it is equal to n+sod(n) for n = 40302023198 and 40302023207.

It is a congruent number.

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, 17776557 + ... + 17778823.

It is an arithmetic number, because the mean of its divisors is an integer number (679719600).

Almost surely, 240302023230 is an apocalyptic number.

40302023230 is an abundant number, since it is smaller than the sum of its proper divisors (46702085570).

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

40302023230 is a wasteful number, since it uses less digits than its factorization.

40302023230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2425 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 40302023230 its reverse (3232020304), we get a palindrome (43534043534).

The spelling of 40302023230 in words is "forty billion, three hundred two million, twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 71 73 98 142 146 245 343 355 365 490 497 511 686 710 730 994 1022 1715 2267 2485 2555 3430 3479 3577 4534 4970 5110 5183 6958 7154 10366 11335 15869 17395 17885 22670 24353 25039 25915 31738 34790 35770 36281 48706 50078 51830 72562 79345 111083 121765 125195 158690 160957 165491 181405 222166 243530 250390 253967 321914 330982 362810 507934 555415 777581 804785 827455 1110830 1126699 1158437 1269835 1555162 1609570 1654910 1777769 2253398 2316874 2539670 3555538 3887905 5633495 5792185 7775810 7886893 8109059 8888845 11266990 11584370 11749861 15773786 16218118 17777690 23499722 39434465 40545295 55208251 56763413 58749305 78868930 81090590 82249027 110416502 113526826 117498610 164498054 276041255 283817065 411245135 552082510 567634130 575743189 822490270 1151486378 2878715945 4030202323 5757431890 8060404646 20151011615 40302023230