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400340131323430 = 253131087254346271
BaseRepresentation
bin101101100000110110111001…
…1010100010001111000100110
31221111111010212002100121021011
41123001231303110101320212
5404433133042104322210
63535241414541412434
7150216422442320644
oct13301556324217046
91844433762317234
10400340131323430
111066193293171a1
1238a98723b6a11a
131424cbb26bbb8c
1470c07cc580194
153143b73ab4d8a
hex16c1b73511e26

400340131323430 has 64 divisors (see below), whose sum is σ = 723879748435968. Its totient is φ = 159411429515520.

The previous prime is 400340131323409. The next prime is 400340131323479. The reversal of 400340131323430 is 34323131043004.

It is a super-2 number, since 2×4003401313234302 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400340131323392 and 400340131323401.

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, 8652051195 + ... + 8652097465.

It is an arithmetic number, because the mean of its divisors is an integer number (11310621069312).

Almost surely, 2400340131323430 is an apocalyptic number.

400340131323430 is a deficient number, since it is larger than the sum of its proper divisors (323539617112538).

400340131323430 is a wasteful number, since it uses less digits than its factorization.

400340131323430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50221.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 400340131323430 its reverse (34323131043004), we get a palindrome (434663262366434).

The spelling of 400340131323430 in words is "four hundred trillion, three hundred forty billion, one hundred thirty-one million, three hundred twenty-three thousand, four hundred thirty".

Divisors: 1 2 5 10 313 626 1087 1565 2174 2543 3130 5086 5435 10870 12715 25430 46271 92542 231355 340231 462710 680462 795959 1591918 1701155 2764241 3402310 3979795 5528482 7959590 13821205 14482823 27642410 28965646 50296577 72414115 100593154 117667153 144828230 235334306 251482885 502965770 588335765 865207433 1176671530 1730414866 4326037165 8652074330 15742828601 31485657202 36829818889 73659637778 78714143005 127904195311 157428286010 184149094445 255808390622 368298188890 639520976555 1279041953110 40034013132343 80068026264686 200170065661715 400340131323430