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40071007740 = 22351264752807
BaseRepresentation
bin100101010100011010…
…110000110111111100
310211102121200002210210
4211110122300313330
51124031134221430
630224112432420
72615665642311
oct452432606774
9124377602723
1040071007740
1115aa3048225
127923848710
133a179b498a
141d21bb2d08
151097d612b0
hex9546b0dfc

40071007740 has 48 divisors (see below), whose sum is σ = 112209818112. Its totient is φ = 10684554816.

The previous prime is 40071007729. The next prime is 40071007741. The reversal of 40071007740 is 4770017004.

It is a super-2 number, since 2×400710077402 (a number of 22 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 40071007698 and 40071007707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40071007741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732417 + ... + 785223.

It is an arithmetic number, because the mean of its divisors is an integer number (2337704544).

Almost surely, 240071007740 is an apocalyptic number.

It is an amenable number.

40071007740 is an abundant number, since it is smaller than the sum of its proper divisors (72138810372).

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

40071007740 is a wasteful number, since it uses less digits than its factorization.

40071007740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65466 (or 65464 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 30.

The spelling of 40071007740 in words is "forty billion, seventy-one million, seven thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 12647 25294 37941 50588 52807 63235 75882 105614 126470 151764 158421 189705 211228 252940 264035 316842 379410 528070 633684 758820 792105 1056140 1584210 3168420 667850129 1335700258 2003550387 2671400516 3339250645 4007100774 6678501290 8014201548 10017751935 13357002580 20035503870 40071007740