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1690070230368 = 2532131731227631
BaseRepresentation
bin11000100110000000000…
…010010010010101100000
312222120100220022021001100
4120212000002102111200
5210142230434332433
63332224010234400
7233050341633612
oct30460002222540
95876326267040
101690070230368
115a1833648703
12233669125a00
13c34b0467940
145bb2aa6adb2
152de68bd4b13
hex18980092560

1690070230368 has 432 divisors, whose sum is σ = 5662992823488. Its totient is φ = 473626828800.

The previous prime is 1690070230367. The next prime is 1690070230379. The reversal of 1690070230368 is 8630320700961.

It is a super-2 number, since 2×16900702303682 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690070230361) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 61151913 + ... + 61179543.

It is an arithmetic number, because the mean of its divisors is an integer number (13108779684).

Almost surely, 21690070230368 is an apocalyptic number.

1690070230368 is a gapful number since it is divisible by the number (18) 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 1690070230368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2831496411744).

1690070230368 is an abundant number, since it is smaller than the sum of its proper divisors (3972922593120).

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

1690070230368 is a wasteful number, since it uses less digits than its factorization.

1690070230368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27739 (or 27697 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 1690070230368 in words is "one trillion, six hundred ninety billion, seventy million, two hundred thirty thousand, three hundred sixty-eight".